137-639: The Broyles Award is an annual award given to honor the best assistant coach in college football . First awarded in 1996, it was named after former University of Arkansas men's athletic director Frank Broyles . The award is presented in Little Rock, Arkansas at the Downtown Rotary Club. To date 18 of the 23 winners have gone on to become head football coaches. Every year, roughly 1,300 assistant coaches representing all 130 FBS programs are eligible for nomination by their peers as well as
274-399: A Selection Committee composed of former head coaches. The nominees are narrowed down to just five finalists, all of whom are invited to Little Rock, Arkansas for the annual Broyles Award ceremony. The success of the five finalists is celebrated over a two-day period, which culminates in the award ceremony. Finalists receive gifts from event sponsors and a Broyles Award finalist plaque, while
411-500: A down . The offence must advance the ball at least ten yards towards the opponents' goal line within three downs or forfeit the ball to their opponents. Once ten yards have been gained the offence gains a new set of three downs (rather than the four downs given in American football). Downs do not accumulate. If the offensive team completes 10 yards on their first play, they lose the other two downs and are granted another set of three. If
548-422: A gridiron in appearance. Other major rule changes included a reduction of the field size to 110 by 53 + 1 ⁄ 3 yards (100.6 m × 48.8 m) and the adoption of a scoring system that awarded four points for a touchdown, two for a safety and a goal following a touchdown , and five for a goal from the field . Additionally, tackling below the waist was legalized, and a static line of scrimmage
685-403: A halftime period, and the first and third quarters are followed by a short break. Before the game starts, the referee and each team's captain meet at midfield for a coin toss . The visiting team can call either "heads" or "tails"; the winner of the toss chooses whether to receive or kick off the ball or which goal they wish to defend. They can defer their choice until the second half. Unless
822-401: A 10-yard-long chain between them, are used to measure for a first down. The chain crew stays on the sidelines during the game, but if requested by the officials they will briefly bring the chains on to the field to measure. A typical chain crew will have at least three people—two members of the chain crew will hold either of the two sticks, while a third will hold the down marker. The down marker,
959-525: A PAT attempt or successful field goal, the scoring team must kick the ball off to the other team. A safety is scored when the ball carrier is tackled in the carrier's own end zone. Safeties are worth two points, which are awarded to the defense. In addition, the team that conceded the safety must kick the ball to the scoring team via a free kick . Football games are played on a rectangular field that measures 120 yards (110 m) long and 53 + 1 ⁄ 3 yards (48.8 m) wide. Lines marked along
1096-676: A college or CFL game. Prince Edward Island , the smallest of the provinces, has also never hosted a CFL game. On 13 February 2023, the International Federation of American Football (IFAF) and Football Canada announced in a joint statement that the Canadian Amateur Football Rulebook would be an accepted rules code for international play, but would not be a substitute for world championships or world championship qualification. "As Football Canada continues to work with IFAF, I believe this opens
1233-528: A common draft that would take place each year, and it instituted an annual World Championship game to be played between the champions of each league. This championship game began play at the end of the 1966 season. Once the merger was completed, it was no longer a championship game between two leagues and reverted to the NFL championship game, which came to be known as the Super Bowl . College football maintained
1370-409: A defender may not be impeded more than one yard past that line. Otherwise, any player may block another player's passage, so long as he does not hold or trip the player he intends to block. The kicker may not be contacted after the kick but before his kicking leg returns to the ground (this rule is not enforced upon a player who has blocked a kick). The quarterback may not be hit or tackled after throwing
1507-598: A feat the Professional Football Researchers Association compared to "selling refrigerators to Eskimos ". Princeton, Harvard, Yale, and Columbia then agreed to intercollegiate play using a form of rugby union rules with a modified scoring system. These schools formed the Intercollegiate Football Association , although Yale did not join until 1879. Yale player Walter Camp , now regarded as
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#17327916246431644-453: A field goal instead. A group of officials, the chain crew, keeps track of both the downs and the distance measurements. On television, a yellow line is electronically superimposed on the field to show the first down line to the viewing audience. There are two categories of kicks in football: scrimmage kicks, which can be executed by the offensive team on any down from behind or on the line of scrimmage, and free kicks. The free kicks are
1781-411: A first down or moving the ball past the goal line, a first down is awarded. In most cases, the non-penalized team will have the option of declining the penalty; in which case the results of the previous play stand as if the penalty had not been called. One notable exception to this rule is if the kicking team on a 3rd down punt play is penalized before the kick occurs: the receiving team may not decline
1918-428: A game between Yale and Princeton, both teams used this strategy to maintain their undefeated records. Each team held the ball, gaining no ground, for an entire half, resulting in a 0–0 tie. This "block game" proved extremely unpopular with both teams' spectators and fans. A rule change was necessary to prevent this strategy from taking hold, and a reversion to the scrum was considered. However, Camp successfully proposed
2055-598: A game for the Allegheny Athletic Association against the Pittsburgh Athletic Club . This is the first recorded instance of a player being paid to participate in a game of American football , although many athletic clubs in the 1880s offered indirect benefits, such as helping players attain employment, giving out trophies or watches that players could pawn for money, or paying double in expense money. Despite these extra benefits,
2192-428: A half. A short break interval of 2 minutes occurs after the end of each quarter (a longer break of 15 minutes at halftime), and the two teams then change goals. In the first 27 minutes of a half, the clock stops when: The clock starts again when the referee determines the ball is ready for scrimmage, except for team time-outs (where the clock starts at the snap), after a time count foul (at the snap) and kickoffs (where
2329-533: A large stick with a dial on it, is flipped after each play to indicate the current down and is typically moved to the approximate spot of the ball. The chain crew system has been used for over 100 years and is considered an accurate measure of distance, rarely subject to criticism from either side. Football is a full-contact sport, and injuries are relatively common. Most injuries occur during training sessions, particularly ones that involve contact between players. To try to prevent injuries, players are required to wear
2466-564: A league-suggested numbering scheme. Although the sport is played almost exclusively by men, women are eligible to play in high school, college, and professional football. No woman has ever played in the NFL, but women have played in high school and college football games. In 2018, 1,100 of the 225,000 players in Pop Warner Little Scholars youth football were girls, and around 11% of the 5.5 million Americans who report playing tackle football are female according to
2603-408: A long circumference of 28 to 28 + 1 ⁄ 2 inches (71 to 72 cm), and a short circumference of 21 to 21 + 1 ⁄ 4 inches (53 to 54 cm). In college and high school play the ball has a long axis of 10 + 7 ⁄ 8 to 11 + 7 ⁄ 16 inches (27.6 to 29.1 cm), a long circumference of 27 + 3 ⁄ 4 to 28 + 1 ⁄ 2 inches (70 to 72 cm), and
2740-412: A loss of down; penalties on the defence may result in a first down being automatically awarded to the offence. For particularly severe conduct, the game official(s) may eject players (ejected players may be substituted for), or in exceptional cases, declare the game over and award victory to one side or the other. Penalties do not affect the yard line which the offence must reach to gain a first down (unless
2877-420: A minimum of 10 feet (3.0 m) on high school fields. Goal posts are padded at the base, and orange ribbons are normally placed at the tip of each upright as indicators of wind strength and direction. The football itself is a prolate spheroid leather ball, similar to the balls used in rugby or Australian rules football . To contain the compressed air within it, a pig's bladder was commonly used before
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#17327916246433014-704: A national champion of college football. The first was the Bowl Coalition , in place from 1992 to 1994. This was replaced in 1995 by the Bowl Alliance , which gave way to the Bowl Championship Series (BCS) in 1997. The BCS arrangement proved to be controversial , and was replaced in 2014 by the College Football Playoff (CFP). A football game is played between two teams of 11 players each. Playing with more on
3151-428: A pass hits the ground without a player having caught it. A forward pass can be legally attempted only if the passer is behind the line of scrimmage; only one forward pass can be attempted per down. As in rugby, players can also pass the ball backwards at any point during a play. In the NFL, a down also ends immediately if the runner's helmet comes off. The offense is given a series of four plays, known as downs . If
3288-408: A point. The ball has two one-inch-wide white stripes. At the beginning of a match, an official tosses a coin and allows the captain of the visiting team to call heads or tails. The captain of the team winning the coin toss is given the option of having first choice, or of deferring first choice to the other captain. The captain making first choice may either choose a) to kick off or receive the kick at
3425-427: A quarter ends, play continues until the down is completed. If certain fouls are committed during play while time has expired, the quarter may be extended through an untimed down . Games last longer than their defined length due to play stoppages—the average NFL game lasts slightly over three hours. Time in a football game is measured by the game clock. An operator is responsible for starting, stopping and operating
3562-414: A round ball that could not be picked up or carried. It could, however, be kicked or batted with the feet, hands, head, or sides, with the objective being to advance it into the opponent's goal. Rutgers won the game 6–4. Collegiate play continued for several years with games played using the rules of the host school. Representatives of Yale, Columbia , Princeton and Rutgers met on October 19, 1873, to create
3699-422: A rule in 1882 that limited each team to three downs , or tackles, to advance the ball 5 yards (4.6 m). Failure to advance the ball the required distance within those three downs would result in control of the ball being forfeited to the other team. This change effectively made American football a separate sport from rugby, and the resulting five-yard lines added to the field to measure distances made it resemble
3836-436: A secondary signal. Women can serve as officials; Sarah Thomas became the NFL's first female official in 2015. The seven officials (of a standard seven-man crew; lower levels of play up to the college level use fewer officials) on the field are each tasked with a different set of responsibilities: Another set of officials, the chain crew , are responsible for moving the chains. The chains, consisting of two large sticks with
3973-560: A set of equipment. At a minimum players must wear a football helmet and a set of shoulder pads , but individual leagues may require additional padding such as thigh pads and guards, knee pads, chest protectors, and mouthguards . Most injuries occur in the lower extremities, particularly in the knee, but a significant number also affect the upper extremities. The most common types of injuries are strains , sprains , bruises , fractures , dislocations , and concussions . Canadian football Canadian football , or simply football ,
4110-410: A short circumference of 20 + 3 ⁄ 4 to 21 + 1 ⁄ 4 inches (53 to 54 cm). Football games last for a total of 60 minutes in professional and college play and are divided into two halves of 30 minutes and four quarters of 15 minutes. High school football games are 48 minutes in length with two halves of 24 minutes and four quarters of 12 minutes. The two halves are separated by
4247-456: A standard set of rules for use by all schools. Teams were set at 20 players each, and fields of 400 by 250 feet (122 m × 76 m) were specified. Harvard abstained from the conference, as they favored a rugby-style game that allowed running with the ball. After playing McGill University using both American (known as "the Boston game ") for the first game and Canadian (rugby) rules for
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4384-413: A team fails to gain ten yards in two downs they usually punt the ball on third down or try to kick a field goal (see below), depending on their position on the field. The team may, however use its third down in an attempt to advance the ball and gain a cumulative 10 yards. The ball changes possession in the following instances: There are many rules to contact in this type of football. The only player on
4521-449: A tradition of postseason bowl games . Each bowl game was associated with a particular conference and earning a spot in a bowl game was the reward for winning a conference. This arrangement was profitable, but it tended to prevent the two top-ranked teams from meeting in a true national championship game, as they would normally be committed to the bowl games of their respective conferences. Several systems have been used since 1992 to determine
4658-399: A two-point conversion. The other team then scrimmages the ball at the opponent's 35-yard line and has the same opportunity to score. After the teams have completed their possessions, if one team is ahead, then it is declared the winner; otherwise, the two teams each get another chance to score, scrimmaging from the other 35-yard line. After this second round, if there is still no winner, during
4795-418: A two-point convert following a defensive penalty on a one-point attempt. Penalties may occur before a play starts (such as offside), during the play (such as holding), or in a dead-ball situation (such as unsportsmanlike conduct ). Penalties never result in a score for the offence. For example, a point-of-foul infraction committed by the defence in their end zone is not ruled a touchdown, but instead advances
4932-453: Is a sport in Canada in which two teams of 12 players each compete on a field 110 yards (101 m) long and 65 yards (59 m) wide, attempting to advance a pointed oval-shaped ball into the opposing team's end zone . American and Canadian football have shared origins and are closely related, but have some major differences . Rugby football , from which Canadian football developed,
5069-429: Is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense , the team with possession of the oval-shaped football , attempts to advance down the field by running with the ball or throwing it , while the defense , the team without possession of the ball, aims to stop the offense's advance and to take control of the ball for themselves. The offense must advance
5206-425: Is called on the offense. There are two main ways the offense can advance the ball: running and passing . In a typical play, the center passes the ball backwards and between their legs to the quarterback in a process known as the snap . The quarterback then either hands the ball off to a running back, throws the ball, or runs with it. The play ends when the player with the ball is tackled or goes out-of-bounds or
5343-437: Is caught or recovered behind the line of scrimmage. If it is touched or recovered by the kicking team beyond this line, it becomes dead at the spot where it was touched. The kicking team is prohibited from interfering with the receiver's opportunity to catch the ball. The receiving team has the option of signaling for a fair catch , which prohibits the defense from blocking into or tackling the receiver. The play ends as soon as
5480-451: Is dead, the quarter is extended for one more scrimmage. A quarter cannot end while a penalty is pending: after the penalty yardage is applied, the quarter is extended one scrimmage. The non-penalized team has the option to decline any penalty it considers disadvantageous, so a losing team cannot indefinitely prolong a game by repeatedly committing infractions. In the CFL, if the game is tied at
5617-403: Is known as a two-point conversion . In general, the extra point is almost always successful, while the two-point conversion is a much riskier play with a higher probability of failure; accordingly, extra point attempts are far more common than two-point conversion attempts. A field goal (FG), worth three points, is scored when the ball is place kicked or drop kicked through the uprights and over
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5754-407: Is responsible for all kicking plays. The special teams unit of the team in control of the ball tries to execute field goal (FG) attempts, punts , and kickoffs , while the opposing team's unit will aim to block or return them. Three positions are specific to the field goal and PAT (point-after-touchdown) unit: the placekicker (K or PK), holder (H), and long snapper (LS). The long snapper's job
5891-421: Is to block members of the defensive line from tackling the ball carrier on running plays or sacking the quarterback on passing plays. The leader of the offensive line is the center, who is responsible for snapping the ball to the quarterback, blocking, and for making sure that the other linemen do their jobs during the play. On either side of the center are the guards (G), while tackles (T) line up outside
6028-437: Is to snap the football to the holder, who will catch and position it for the placekicker. There is not usually a holder on kickoffs, because the ball is kicked off a tee; however, a holder may be used in certain situations, such as if wind is preventing the ball from remaining upright on the tee. The player on the receiving team who catches the ball is known as the kickoff returner (KR). The positions specific to punt plays are
6165-607: The 1958 NFL Championship game between the Baltimore Colts and the New York Giants , still referred to as the "Greatest Game Ever Played". The game, a 23–17 overtime victory by the Colts, was seen by millions of television viewers and had a major influence on the popularity of the sport. This, along with the innovations introduced by the new American Football League (AFL) in the early 1960s, helped football to become
6302-542: The Alberta Football League . The Canadian Football Hall of Fame is in Hamilton, Ontario . The first documented football match was a practice game played on November 9, 1861, at University College, University of Toronto (approximately 400 yards or 370 metres west of Queen's Park). One of the participants in the game involving University of Toronto students was Sir William Mulock , later chancellor of
6439-644: The Canadian Rugby Football Union (CRFU) founded June 12, 1880, which included teams from Ontario and Quebec. Later both the Ontario Rugby Football Union and Quebec Rugby Football Union (ORFU and QRFU respectively) were formed (January 1883), and then the Interprovincial (1907) and Western Interprovincial Football Union (1936) (IRFU and WIFU). The CRFU reorganized into an umbrella organization forming
6576-454: The Grey Cup are completed by late November. In cities with outdoor stadiums such as Edmonton , Winnipeg , Calgary , and Regina , low temperatures and icy field conditions can seriously affect the outcome of a game. Amateur football is governed by Football Canada. At the university level, 27 teams play in four conferences under the auspices of U Sports ; the U Sports champion is awarded
6713-550: The Grey Cup , is one of Canada's biggest sporting events, attracting a large television audience. Canadian football is also played at high school , junior, collegiate , and semi- professional levels: the Canadian Junior Football League and Quebec Junior Football League are for players aged 18–22, post-secondary institutions compete in U Sports football for the Vanier Cup , and seniors in
6850-411: The kickoff , which starts the first and third quarters and overtime and follows a try attempt or a successful field goal; the safety kick follows a safety. On a kickoff, the ball is placed at the 35-yard line of the kicking team in professional and college play and at the 40-yard line in high school play. The ball may be drop kicked or place kicked. If a place kick is chosen, the ball can be placed on
6987-407: The punter (P), long snapper, upback , and gunner . The long snapper snaps the football directly to the punter, who then drops and kicks it before it hits the ground. Gunners line up split outside the line and race down the field, aiming to tackle the punt returner (PR)—the player who catches the punt. Upbacks line up a short distance behind the line of scrimmage, providing additional protection to
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#17327916246437124-708: The return of the NFL to Baltimore prompted the end of Canadian football on the American side of the border. The CFL hosted the Touchdown Atlantic regular season game in Nova Scotia in 2005 and New Brunswick in 2010, 2011, and 2013. In 2013, Newfoundland and Labrador became the last province to establish football at the minor league level, with teams playing on the Avalon Peninsula and in Labrador City. The province however has yet to host
7261-417: The snap , the line of scrimmage , eleven-player teams, and the concept of downs. Later rule changes legalized the forward pass , created the neutral zone , and specified the size and shape of the football. The sport is closely related to Canadian football , which evolved in parallel with and at the same time as the American game, although its rules were developed independently from those of Camp. Most of
7398-471: The "Father of American Football", secured rule changes in 1880 that reduced the size of each team from 15 to 11 players and instituted the snap to replace the chaotic and inconsistent scrum . While the game between Rutgers and Princeton is commonly considered the first American football game, several years prior in 1862, the Oneida Football Club formed as the oldest known football club in
7535-542: The AFL New York Jets signed rookie Joe Namath to a then-record $ 437,000 contract (equivalent to $ 4.23 million in 2023). A five-year, $ 40 million NBC television contract followed, which helped to sustain the young league. The bidding war for players ended in 1966 when NFL owners approached the AFL regarding a merger, and the two leagues agreed on one that took full effect in 1970. This agreement provided for
7672-703: The Alberta Football League becoming especially popular. The Northern Football Conference formed in Ontario in 1954 has also surged in popularity for former college players who do not continue to professional football. The Ontario champion plays against the Alberta champion for the "National Championship". The Canadian Major Football League is the governing body for the semi-professional game. Women's football has gained attention in recent years in Canada. The first Canadian women's league to begin operations
7809-536: The American stadiums. The Grey Cup was established in 1909, after being donated by Albert Grey, 4th Earl Grey , Governor General of Canada, as the championship of teams under the CRU for the Rugby Football Championship of Canada. Initially an amateur competition, it eventually became dominated by professional teams in the 1940s and early 1950s. The ORFU, the last amateur organization to compete for
7946-717: The Canadian Rugby Union (CRU) in 1891. The immediate forerunner to the current Canadian Football League was established in 1956 when the IRFU and WIFU formed an umbrella organization, the Canadian Football Council (CFC). In 1958, the CFC left the CRU to become the "Canadian Football League" (CFL). The Burnside rules closely resembling American football (which are similar rules developed by Walter Camp for that sport) that were incorporated in 1903 by
8083-578: The Canadian and American games stem from rule changes that the American side of the border adopted but the Canadian side did not (originally, both sides had three downs, goal posts on the goal lines, and unlimited forward motion, but the American side modified these rules and the Canadians did not). The Canadian field width was one rule that was not based on American rules, as the Canadian game was played in wider fields and stadiums that were not as narrow as
8220-582: The FCS and 85 scholarship players in the FBS, respectively. Individual players in a football game must be designated with a uniform number between 1 and 99, though some teams may "retire" certain numbers , making them unavailable to players. NFL teams are required to number their players by a league-approved numbering system, and any exceptions must be approved by the commissioner . NCAA and NFHS teams are "strongly advised" to number their offensive players according to
8357-571: The Frank Broyles Award includes many respected coaches from around the nation. The list of current committee members is as follows: The list of current Broadcast Selection Committee Members is as follows: Note: The award year indicates the season it was earned. American football American football , referred to simply as football in the United States and Canada and also known as gridiron football ,
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#17327916246438494-464: The ORFU, were an effort to distinguish it from a more rugby-oriented game. The Burnside Rules had teams reduced to 12 men per side, introduced the snap-back system, required the offensive team to gain 10 yards on three downs, eliminated the throw-in from the sidelines, allowed only six men on the line, stated that all goals by kicking were to be worth two points and the opposition was to line up 10 yards from
8631-456: The Sports and Fitness Industry Association. The role of the offensive unit is to advance the football down the field with the ultimate goal of scoring a touchdown . The offensive team must line up in a legal formation before they can snap the ball. An offensive formation is considered illegal if there are more than four players in the backfield or fewer than five players numbered 50–79 on
8768-650: The Toronto club is still in continuous operation today. This rugby-football soon became popular at Montreal's McGill University . McGill challenged Harvard University to a two-game series in 1874 , using a hybrid game of English rugby devised by the University of McGill. The first attempt to establish a proper governing body and to adopt the current set of Rugby rules was the Foot Ball Association of Canada, organized on March 24, 1873, followed by
8905-586: The United Kingdom, Ireland, New Zealand, and Australia. American football evolved from the sports of rugby and soccer . Rugby, like American football, is a sport in which two competing teams vie for control of a ball, which can be kicked through a set of goalposts or run into the opponent's goal area to score points. What is considered to be the first American football game was played on November 6, 1869 , between Rutgers and Princeton , two college teams. They consisted of 25 players per team and used
9042-508: The United States playing under Canadian rules in 1995. The Expansion was aborted after three years; the Baltimore Stallions were the most successful of the numerous Americans teams to play in the CFL, winning the 83rd Grey Cup . Continuing financial losses, a lack of proper Canadian football venues, a pervasive belief that the American teams were simply pawns to provide the struggling Canadian teams with expansion fee revenue, and
9179-455: The United States. The team consisted of graduates of Boston's elite preparatory schools and played from 1862 to 1865. The introduction of the snap resulted in an unexpected consequence. Before the snap, the strategy had been to punt if a scrum resulted in bad field position. However, a group of Princeton players realized that, as the snap was uncontested, they could now hold the ball indefinitely to prevent their opponent from scoring. In 1881, in
9316-554: The United States: official time was kept on a scoreboard clock rather than on a watch in the referee's pocket, as the NFL did; optional two-point conversions by pass or run after touchdowns; names on the jerseys of players; and several others, including expansion of the role of minority players, actively recruited by the league in contrast to the NFL. The AFL also signed several star college players who had also been drafted by NFL teams. Competition for players heated up in 1965, when
9453-675: The Vanier Cup. Junior football is played by many after high school before joining the university ranks. There are 19 junior teams in three conferences in the Canadian Junior Football League competing for the Canadian Bowl . The Quebec Junior Football League includes teams from Ontario and Quebec who battle for the Manson Cup. Semi-professional leagues have grown in popularity in recent years, with
9590-460: The advent of artificial rubber inside the leather outer shell to sustain crushing forces . At all levels of play, the football is inflated to 12 + 1 ⁄ 2 to 13 + 1 ⁄ 2 psi (86 to 93 kPa), or just under one atmosphere, and weighs 14 to 15 ounces (400 to 430 g); beyond that, the exact dimensions vary slightly. In professional play the ball has a long axis of 11 to 11 + 1 ⁄ 4 inches (28 to 29 cm),
9727-410: The ball at least ten yards in four downs or plays; if they fail, they turn over the football to the defense, but if they succeed, they are given a new set of four downs to continue the drive . Points are scored primarily by advancing the ball into the opposing team's end zone for a touchdown or kicking the ball through the opponent's goalposts for a field goal . The team with the most points at
9864-435: The ball is caught, and the ball may not be advanced. Officials are responsible for enforcing game rules and monitoring the clock. All officials carry a whistle and wear black-and-white striped shirts and black hats except for the referee, whose hat is white. Each carries a weighted yellow flag that is thrown to the ground to signal that a foul has been called. An official who spots multiple fouls will throw their hat as
10001-478: The ball off, throws it, or runs with it. The primary role of the halfback, also known as the running back or tailback, is to carry the ball on running plays. Halfbacks may also serve as receivers. Fullbacks tend to be larger than halfbacks and function primarily as blockers, but they are sometimes used as runners in short-yardage or goal-line situations. They are seldom used as receivers. The offensive line (OL) consists of several players whose primary function
10138-404: The ball to the one-yard line with an automatic first down. For a distance penalty, if the yardage is greater than half the distance to the goal line, then the ball is advanced half the distance to the goal line, though only up to the one-yard line (unlike American football, in Canadian football no scrimmage may start inside either one-yard line). If the original penalty yardage would have resulted in
10275-509: The ball, nor may he be hit while in the pocket (i.e. behind the offensive line) prior to that point below the knees or above the shoulders. Infractions of the rules are punished with penalties , typically a loss of yardage of 5, 10 or 15 yards against the penalized team. Minor violations such as offside (a player from either side encroaching into scrimmage zone before the play starts) are penalized five yards, more serious penalties (such as holding) are penalized 10 yards, and severe violations of
10412-400: The beginning of the half, or b) which direction of the field to play in. The remaining choice is given to the opposing captain. Before the resumption of play in the second half, the captain that did not have first choice in the first half is given first choice. Teams usually choose to defer, so it is typical for the team that wins the coin toss to kick to begin the first half and receive to begin
10549-415: The clock starts not at the kick but when the ball is first touched after the kick). In the last three minutes of a half, the clock stops whenever the ball becomes dead. On kickoffs, the clock starts when the ball is first touched after the kick. On scrimmages, when it starts depends on what ended the previous play. The clock starts when the ball is ready for scrimmage except that it starts on the snap when on
10686-413: The crossbars of the defense's goalposts. In practice, almost all field goal attempts are done via place kick. While drop kicks were common in the early days of the sport, the shape of modern footballs makes it difficult to reliably drop kick the ball. The last successful scoring play by drop kick in the NFL was accomplished in 2006; prior to that, the last successful drop kick had been made in 1941. After
10823-487: The defenders on all kicks. The rules were an attempt to standardize the rules throughout the country. The CIRFU, QRFU, and CRU refused to adopt the new rules at first. Forward passes were not allowed in the Canadian game until 1929, and touchdowns, which had been five points, were increased to six points in 1956, in both cases several decades after the Americans had adopted the same changes. The primary differences between
10960-399: The defense is to prevent the offense from scoring by tackling the ball carrier or by forcing turnovers . Turnovers include interceptions (a defender catching a forward pass intended for the offense) and forced fumbles (taking possession of the ball from the ball-carrier). The defensive line (DL) consists of defensive ends (DE) and defensive tackles (DT). Defensive ends line up on
11097-430: The defensive backfield. They are divided into two types: middle linebackers (MLB) and outside linebackers (OLB). Linebackers tend to serve as the defensive leaders and call the defensive plays, given their vantage point of the offensive backfield. Their roles include defending the run, pressuring the quarterback, and tackling backs, wide receivers, and tight ends in the passing game. The defensive backfield , often called
11234-401: The distance in yards from and an arrow pointed toward the nearest goal line. Prior to the early 1980s, arrows were not used and all yard lines (in both multiples of 5 and 10) were usually marked with the distance to the goal line, including the goal line itself which was marked with either a "0" or "00"; in most stadiums today, only the yard markers in multiples of 10 are marked with numbers, with
11371-509: The door for international friendlies and tournaments to be staged in Canada employing the infrastructure communities have invested in for our sport from coast to coast," Football Canada president and IFAF General Secretary Jim Mullin said in the joint statement. Canadian football is played at several levels in Canada; the top league is the professional nine-team Canadian Football League (CFL). The CFL regular season begins in June, and playoffs for
11508-404: The down repeated. In addition, as noted previously, the referee can give possession to the defence for repeated deliberate time count violations on third down. The clock does not run during convert attempts in the last three minutes of a half. If the 15 minutes of a quarter expire while the ball is live, the quarter is extended until the ball becomes dead. If a quarter's time expires while the ball
11645-405: The end of regulation play, then each team is given an equal number of offensive possessions to break the tie. A coin toss is held to determine which team will take possession first; the first team scrimmages the ball at the opponent's 35-yard line and conducts a series of downs until it scores or loses possession. If the team scores a touchdown, starting with the 2010 season, it is required to attempt
11782-419: The end of the game wins. American football evolved in the United States, originating from the sports of soccer and rugby . The first American football game was played on November 6, 1869 , between two college teams, Rutgers and Princeton , using rules based on the rules of soccer at the time. A set of rule changes drawn up from 1880 onward by Walter Camp , the "Father of American Football", established
11919-454: The end zones are often cut off in the corners to accommodate the track. Until 1986, the end zones were 25 yards (23 m) deep, giving the field an overall length of 160 yards (150 m), and a correspondingly larger cutoff could be required at the corners. The first field to feature the shorter 20-yard end zone was Vancouver's BC Place (home of the BC Lions ), which opened in 1983. This
12056-472: The ends and sides of the field are known as the end lines and sidelines . Goal lines are marked 10 yards (9.1 m) inward from each end line. Weighted pylons are placed the sidelines on the inside corner of the intersections with the goal lines and end lines. White markings on the field identify the distance from the end zone. Inbound lines, or hash marks , are short parallel lines that mark off 1-yard (0.91 m) increments. Yard lines , which can run
12193-404: The ends of the line, while defensive tackles line up inside, between the defensive ends. The primary responsibilities of defensive ends and defensive tackles are to stop running plays on the outside and inside, respectively, to pressure the quarterback on passing plays, and to occupy the line so that the linebackers can break through. Linebackers line up behind the defensive line but in front of
12330-505: The features that distinguish American football from rugby and soccer are also present in Canadian football. The two sports are considered the primary variants of gridiron football . American football is the most popular sport in the United States in terms of broadcast viewership audience. The most popular forms of the game are professional and college football , with the other major levels being high-school and youth football. As of 2022 , nearly 1.04 million high-school athletes play
12467-421: The feet and hands, is forced to the ground (a tackle ); when a forward pass is not caught on the fly (during a scrimmage); when a touchdown (see below) or a field goal is scored; when the ball leaves the playing area by any means (being carried, thrown, or fumbled out of bounds ); or when the ball carrier is in a standing position but can no longer move forwards (called forward progress). If no score has been made,
12604-468: The field is punishable by a penalty. Teams may substitute any number of their players between downs; this "platoon" system replaced the original system, which featured limited substitution rules, and has resulted in teams utilizing specialized offensive, defensive and special teams units. The number of players allowed on an active roster varies by league; the NFL has a 53-man roster, while NCAA Division I allows teams to have 63 scholarship players in
12741-454: The field was shortened to 100 yards (91 m) long, two 10-yard-long (9.1 m) end zones were created, and teams were given four downs instead of three to advance the ball 10 yards (9.1 m). The roughing the passer penalty was implemented in 1914, and eligible players were first allowed to catch the ball anywhere on the field in 1918. On November 12, 1892, Pudge Heffelfinger was paid $ 500 (equivalent to $ 16,956 in 2023) to play
12878-399: The field who may be legally tackled is the player currently in possession of the football (the ball carrier). On a passing play a receiver, that is to say, an offensive player sent down the field to receive a pass, may not be interfered with (have his motion impeded, be blocked, etc.) unless he is within five yards of the line of scrimmage. Prior to a pass that goes beyond the line of scrimmage,
13015-629: The formation of the Intercollegiate Athletic Association of the United States, later renamed the National Collegiate Athletic Association (NCAA). The legal forward pass was introduced in 1906, although its effect was initially minimal due to the restrictions placed on its use. The idea of a 40-yard-wider field was opposed by Harvard due to the size of the new Harvard Stadium . Other rule changes introduced that year included
13152-726: The founders of Milton, Massachusetts, devised rules based on rugby football . The game gradually gained a following, with the Hamilton Football Club (later the Hamilton Tiger-Cats ) formed on November 3, 1869. Montreal Football Club was formed on April 8, 1872. Toronto Argonaut Football Club was formed on October 4, 1873, and the Ottawa Football Club (later the Ottawa Rough Riders) on September 20, 1876. Of those clubs, only
13289-419: The game clock based on the direction of the appropriate official . A separate play clock is used to show the amount of time within which the offense must initiate a play. The play clock is set to 25 seconds after certain administrative stoppages in play and to 40 seconds when play is proceeding without such stoppages. If the offense fails to start a play before the play clock reads "00", a delay of game foul
13426-409: The game had a strict sense of amateurism at the time, and direct payment to players was frowned upon, if not prohibited outright. Over time, professional play became increasingly common, and with it came rising salaries and unpredictable player movement, as well as the illegal payment of college players who were still in school. The National Football League (NFL), a group of professional teams that
13563-440: The goal line sometimes being marked with a "G". The centre (55-yard) line usually is marked with a "C" (or, more rarely, with a "55"). "Hash marks" are painted in white, parallel to the yardage lines, at 1 yard (0.9 m) intervals, 24 yards (21.9 m) from the sidelines under amateur rules, but 28 yards (25.6 m) in the CFL. On fields that have a surrounding running track , such as Molson Stadium and many universities ,
13700-414: The goal lines and end lines. Including the end zones, the total area of the field is 87,750 square feet (8,152 m ). At each goal line is a set of 40-foot-high (12 m) goalposts , which consist of two uprights joined by an 18 + 1 ⁄ 2 -foot-long (5.6 m) crossbar which is 10 feet (3 m) above the goal line. The goalposts may be H-shaped (both posts fixed in the ground) although in
13837-443: The ground or a tee; a holder may be used in either case. On a safety kick, the kicking team kicks the ball from their own 20-yard line. They can punt, drop kick or place kick the ball, but a tee may not be used in professional play. Any member of the receiving team may catch or advance the ball. The ball may be recovered by the kicking team once it has gone at least ten yards and has touched the ground or has been touched by any member of
13974-434: The guards. The principal receivers are the wide receivers (WR) and the tight ends (TE). Wide receivers line up on or near the line of scrimmage, split outside the line. The main goal of the wide receiver is to catch passes thrown by the quarterback, but they may also function as decoys or as blockers during running plays. Tight ends line up outside the tackles and function both as receivers and as blockers. The role of
14111-455: The higher-calibre competitions the tuning-fork design (supported by a single curved post behind the goal line, so that each post starts 10 feet (3 m) above the ground) is preferred. The sides of the field are marked by white sidelines , the goal line is marked in white or yellow, and white lines are drawn laterally across the field every 5 yards (4.6 m) from the goal line. These lateral lines are called "yard lines" and often marked with
14248-502: The kicking team who are not onside may not approach within five yards of the ball until it has been touched by the receiving team, or by an onside teammate. The methods of scoring are: Resumption of play following a score is conducted under procedures which vary with the type of score. The game consists of two 30-minute halves, each of which is divided into two 15-minute quarters. The clock counts down from 15:00 in each quarter. Timing rules change when there are three minutes remaining in
14385-506: The most popular sport in the United States by the mid-1960s. The rival AFL arose in 1960 and challenged the NFL's dominance. The AFL began in relative obscurity but eventually thrived, with an initial television contract with the ABC television network. The AFL's existence forced the conservative NFL to expand to Dallas and Minnesota in an attempt to destroy the new league. Meanwhile, the AFL introduced many new features to professional football in
14522-472: The next play starts from scrimmage . Before scrimmage , an official places the ball at the spot it was at the stop of clock, but no nearer than 24 yards from the sideline or 1 yard from the goal line. The line parallel to the goal line passing through the ball (line from sideline to sideline for the length of the ball) is referred to as the line of scrimmage. This line is similar to " no-man's land "; players must stay on their respective sides of this line until
14659-415: The offence and the team defending is referred to as the defence. Play begins with a backwards pass through the legs (the snap) by a member of the offensive team, to another member of the offensive team. This is usually the quarterback or punter, but a "direct snap" to a running back is also not uncommon. If the quarterback or punter receives the ball, he may then do any of the following: Each play constitutes
14796-429: The offense advances ten or more yards in the four downs, they are awarded a new set of four downs. If they fail to advance ten yards, possession of the football is turned over to the defense. In most situations, if the offense reaches their fourth down they will punt the ball to the other team, which forces them to begin their drive from farther down the field; if they are in field goal range , they might attempt to score
14933-429: The offensive line. Players can line up temporarily in a position whose eligibility is different from what their number permits as long as they report the change immediately to the referee, who then informs the defensive team of the change. Neither team's players, except the center (C), are allowed to line up in or cross the neutral zone until the ball is snapped. Interior offensive linemen are not allowed to move until
15070-413: The penalty and take over on downs. After the kick is made, change of possession occurs and subsequent penalties are assessed against either the spot where the ball is caught, or the runback. Canadian football distinguishes four ways of kicking the ball: On any kicking play, all onside players (the kicker, and teammates behind the kicker at the time of the kick) may recover and advance the ball. Players on
15207-417: The penalty results in a first down being awarded); if a penalty against the defence results in the first down yardage being attained, then the offence is awarded a first down. If the defence is penalized on a two-point convert attempt and the offence chooses to attempt the play again, the offence must attempt another two-point convert; it cannot change to a one-point attempt. Conversely, the offence can attempt
15344-445: The plane of the two end lines. The crossbar of these posts is 10 feet (3.0 m) above the ground, with vertical uprights at the end of the crossbar 18 feet 6 inches (5.64 m) apart for professional and collegiate play, and 23 feet 4 inches (7.11 m) apart for high school play. The uprights extend vertically 35 feet (11 m) on professional fields, a minimum of 10 yards (9.1 m) on college fields, and
15481-401: The play has begun again. For a scrimmage to be valid the team in possession of the football must have seven players, excluding the quarterback, within one yard of the line of scrimmage. The defending team must stay a yard or more back from the line of scrimmage. On the field at the beginning of a play are two teams of 12 (and not 11 as in American football). The team in possession of the ball is
15618-451: The point(s)-after-touchdown (PAT) or conversion, which is a single scoring opportunity. This is generally attempted from the two- or three-yard line, depending on the level of play. If the PAT is scored by a place kick or drop kick through the goal posts, it is worth one point, typically called the extra point. If the PAT is scored by what would normally be a touchdown, it is worth two points; this
15755-489: The previous play: During the last three minutes of a half, the penalty for failure to place the ball in play within the 20-second play clock, known as a "time count violation" (this foul is known as "delay of game" in American football), is dramatically different from during the first 27 minutes. Instead of the penalty being 5 yards with the down repeated, the base penalty (except during convert attempts) becomes loss of down on first or second down, and 10 yards on third down with
15892-422: The punter. In football, the winner is the team that has scored more points at the end of the game. There are multiple ways to score in a football game. The touchdown (TD), worth six points, is the most valuable scoring play in American football. A touchdown is scored when a live ball is advanced into, caught, or recovered in the opposing team's end zone. The scoring team then attempts a try, more commonly known as
16029-401: The receiving team. The three types of scrimmage kicks are place kicks, drop kicks, and punts. Only place kicks and drop kicks can score points. The place kick is the standard method used to score points, because the pointy shape of the football makes it difficult to reliably drop kick. Once the ball has been kicked from a scrimmage kick, it can be advanced by the kicking team only if it
16166-439: The reduction of playing time from 70 to 60 minutes and an increase of the distance required for a first down from 5 to 10 yards (4.6 to 9.1 m). To reduce infighting and dirty play between teams, the neutral zone was created along the width of the football before the snap. Scoring was also adjusted: points awarded for field goals were reduced to three in 1909 and points for touchdowns were raised to six in 1912. Also in 1912,
16303-542: The rulebook for the 1876 college football season , when the sport first shifted from soccer-style rules to rugby-style rules. Although it could easily have been called "rugby" at this point, Harvard, one of the primary proponents of the rugby-style game, compromised and did not request the name of the sport be changed to "rugby". The terms " gridiron " or "American football" are favored in English-speaking countries where other types of football are popular, such as
16440-402: The rules (such as face-masking [grabbing the face mask attached to a player's helmet]) are typically penalized 15 yards. Depending on the penalty, the penalty yardage may be assessed from the original line of scrimmage, from where the violation occurred (for example, for a pass interference infraction), or from where the ball ended after the play. Penalties on the offence may, or may not, result in
16577-853: The school. A football club was formed at the university soon afterward, although its rules of play at this stage are unclear. The first written account of a game played was on October 15, 1862, on the Montreal Cricket Grounds. It was between the First Battalion Grenadier Guards and the Second Battalion Scots Fusilier Guards resulting in a win by the Grenadier Guards 3 goals, 2 rouges to nothing. In 1864, at Trinity College , Toronto, F. Barlow Cumberland, Frederick A. Bethune, and Christopher Gwynn, one of
16714-457: The second one, the Harvard players preferred the Canadian style of having only 11 men on the field, running the ball without having to be chased by an opponent, the forward pass, tackling, and using an oblong instead of a round ball. An 1875 Harvard–Yale game played under rugby-style rules was observed by two Princeton athletes who were impressed by it. They introduced the sport to Princeton,
16851-415: The second. Play begins at the start of each half with one team place-kicking the ball from its own end of the field: the 35-yard line in the CFL, the 45-yard line in amateur play. Both teams then attempt to catch the ball. The player who recovers the ball may run while holding the ball, or lateral throw the ball to a teammate. Play stops when the ball carrier's knee, elbow, or any other body part aside from
16988-503: The secondary, consists of cornerbacks (CB) and safeties (S). Safeties are themselves divided into free safeties (FS) and strong safeties (SS). Cornerbacks line up outside the defensive formation, typically opposite a receiver to be able to cover them. Safeties line up between the cornerbacks but farther back in the secondary. Safeties tend to be viewed as "the last line of defense" and are responsible for stopping deep passing plays as well as breakout running plays. The special teams unit
17125-411: The snap of the ball. The main backfield positions are the quarterback (QB), halfback/tailback (HB/TB), and fullback (FB). The quarterback is the leader of the offense. Either the quarterback or a coach calls the plays. Quarterbacks typically inform the rest of the offense of the play in the huddle before the team lines up. The quarterback lines up behind the center to take the snap and then hands
17262-531: The sport in the U.S., with another 81,000 college athletes in the NCAA and the NAIA . The National Football League (NFL) has the highest average attendance of any professional sports league in the world . Its championship game, the Super Bowl , ranks among the most-watched club sporting events globally. In 2022, the league had an annual revenue of around $ 18.6 billion, making it the most valuable sports league in
17399-499: The time was played at the collegiate level . The upstart NFL received a boost to its legitimacy in 1925, however, when an NFL team, the Pottsville Maroons , defeated a team of Notre Dame all-stars in an exhibition game . A greater emphasis on the passing game helped professional football to distinguish itself further from the college game during the late 1930s. Football, in general, became increasingly popular following
17536-485: The trophy, withdrew from competition after the 1954 season. The move ushered in the modern era of Canadian professional football, culminating in the formation of the present-day Canadian Football League in 1958. Canadian football has mostly been confined to Canada, with the United States being the only other country to have hosted high-level Canadian football games. The CFL's controversial " South Division " as it would come to be officially known attempted to put CFL teams in
17673-411: The width of the field, are marked every 5 yards (4.6 m). A one-yard-wide line is placed at each end of the field; this line is marked at the center of the two-yard line in professional play and at the three-yard line in college play. Numerals that display the distance from the closest goal line in yards are placed on both sides of the field every ten yards. Goalposts are located at the center of
17810-479: The winner receives the bronze-cast trophy , valued at $ 5,000. The Broyles Award Trophy, made out of solid bronze, depicts Broyles (kneeling) and longtime University of Arkansas assistant coach Wilson Matthews (standing), watching over a Razorbacks football game or practice. Matthews was the coach of Little Rock Central High School before joining Broyles on the Razorbacks' staff. The selection committee for
17947-408: The winning team decides to defer, the losing team chooses the option the winning team did not select—to receive, kick, or select a goal to defend to begin the second half. Most teams choose to receive or defer, because choosing to kick the ball to start the game allows the other team to choose which goal to defend. Teams switch goals following the first and third quarters. If a down is in progress when
18084-402: The world. Other professional and amateur leagues exist worldwide, but the sport does not have the international popularity of other American sports like baseball or basketball ; the sport maintains a growing following in the rest of North America, Europe, Brazil, and Japan. In the United States, American football is referred to as "football". The term "football" was officially established in
18221-509: Was first recorded in Canada in the early 1860s, taken there by British immigrants, possibly in 1824. Both the Canadian Football League (CFL), the sport's top professional league, and Football Canada , the governing body for amateur play, trace their roots to 1880 and the founding of the Canadian Rugby Football Union . The CFL is the most popular and only major professional Canadian football league. Its championship game,
18358-520: Was instituted. Despite these new rules, football remained a violent sport. Dangerous mass-formations like the flying wedge resulted in serious injuries and deaths. A 1905 peak of 19 fatalities nationwide resulted in a threat by President Theodore Roosevelt to abolish the game unless major changes were made. In response, 62 colleges and universities met in New York City to discuss rule changes on December 28, 1905. These proceedings resulted in
18495-535: Was originally established in 1920 as the American Professional Football Association, aimed to solve these problems. This new league's stated goals included an end to bidding wars over players, prevention of the use of college players, and abolition of the practice of paying players to leave another team. By 1922, the NFL had established itself as America's premier professional football league. The dominant form of football at
18632-429: Was particularly common among U.S.-based teams during the CFL's American expansion, where few American stadiums were able to accommodate the much longer and noticeably wider CFL field. The end zones in Toronto's BMO Field are only 18 yards instead of 20 yards. Teams advance across the field through the execution of quick, distinct plays, which involve the possession of a brown, prolate spheroid ball with ends tapered to
18769-532: Was the Maritime Women's Football League in 2004. The largest women's league is the Western Women's Canadian Football League . The Canadian football field is 150 yards (137 m) long and 65 yards (59 m) wide, within which the goal areas are 20 yards (18 m) deep, and the goal lines are 110 yards (101 m) apart. Weighted pylons are placed on the inside corner of the intersections of
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