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73-620: In December 2018, the UCI announced various reforms to the structure and organisation of men's professional road racing. One of the major changes is the introduction of a new division of races called the UCI ProSeries. With the introduction of the ProSeries, the UCI .HC road races disappeared from the calendar. In October 2019, the UCI published the 2020 UCI International Road Calendar, including

146-578: A championship or series of championships was required to pay the UCI 30 per cent of ticket receipts from the track and 10 per cent from the road. Of this, the UCI kept 30 per cent and gave the rest to competing nations in proportion to the number of events in which it competed. The highest gate money in this pre-war era was 600 000 francs in Paris in 1903. There were originally five championships: amateur and professional sprint, amateur and professional road race, and professional Motor-paced racing . The road race

219-453: A floodplain, a highway, the motorway connecting the city to Lyon, France, and a landfill. They analyzed the chemicals in these areas before and after the Games. Their findings revealed an increase in the number of metals in the topsoil post-Games, and indicated that soil was capable of buffering the effects of many but not all heavy metals. Mercury, lead, and arsenic may have been transferred into

292-747: A legal defense fund was set up to assist him. Under approval of the UCI, the Free Rate Downhill Race took place in May 2015 on Crimea , an internationally recognised Ukrainian territory that was annexed by the Russian Federation in March 2014. By officially overseeing an international competition with Russian license on the Ukrainian peninsula, the UCI was the first and only international sports governing body which undermined

365-444: A process to review and allow Russian and Belarusian riders to participant UCI events under Individual neutral athlete. The UCI organises cycling's world championships, administration of which it gives to member nations. The first championships were on the road and on the track. They were allocated originally to member nations in turn, on condition the country was deemed competent and that it could guarantee ticket sales. A nation given

438-443: A row over whether Great Britain should be allowed just one team at the world Championships or separate teams representing England, Ireland, Scotland and Wales. Britain found itself outflanked, and it was not able to join the UCI – under the conditions the UCI had imposed – until 1903. There were originally 30 countries affiliated to the union. They did not have equal voting power and some had no vote at all. Votes were distributed by

511-566: A season-long competition of elite-level. The UCI Para-cycling Track World Championships for men and women offers individual and team championships in several track cycling disciplines. Each UCI-sponsored event feeds into the season-long competition known as the UCI Cyclo-cross World Cup . In addition, a series of single-day events are held each year to determine the Cyclo-cross World Champion at

584-534: Is released into the air from incomplete combustion of carbonaceous fluids, contributing to climate change and injuring human health. Secondary pollutants such as CO , NOx , SO2 , benzene , toluene , ethylbenzene , and xylenes ( BTEX ) are also released during construction. For the Beijing Olympics, vehicles not meeting the Euro 1 emission standards were banned, and the odd-even rule was implemented in

657-609: Is the international, non-governmental , sports governing body of the modern Olympic Games . Founded in 1894 by Pierre de Coubertin and Demetrios Vikelas , it is based in Lausanne , Switzerland. The IOC is the authority responsible for organizing the Summer , Winter , and Youth Olympics. The IOC also is the governing body of the National Olympic Committees (NOCs) and of the worldwide Olympic Movement ,

730-586: Is the most important international event for boys and girls under 16 years old, the first edition of which took place in 2000. The UCI sponsors world championships for artistic cycling and cycle ball at an annual event known as the UCI Indoor Cycling World Championships . The national federations form confederations by continent : International Olympic Committee The International Olympic Committee ( IOC ; French: Comité international olympique , CIO )

803-531: Is the primary method to reduce concentrations of air pollutants, including barring heavy vehicles. Research at the Beijing Olympic Games identified particulate matter – measured in terms of PM10 (the amount of aerodynamic diameter of particle ≤ 10 μm in a given amount of air) – as a top priority. Particulate matter, along with other airborne pollutants, cause both serious health problems, such as asthma , and damage urban ecosystems. Black carbon

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876-559: Is the world governing body for sports cycling and oversees international competitive cycling events. The UCI is based in Aigle , Switzerland. The UCI issues racing licenses to riders and enforces disciplinary rules, such as in matters of doping . The UCI also manages the classification of races and the points ranking system in various cycling disciplines including road and track cycling , mountain biking , Gravel, and BMX , for both men and women, amateur and professional. It also oversees

949-753: The COVID-19 pandemic , multiple events were cancelled, postponed or introduced in both 2020 and 2021 and the ProSeries calendar has been revised several times. The calendar features events in 19 countries on 4 continents: Argentina , Austria , Belgium , China , Denmark , France , Germany , Great Britain , Italy , Japan , Luxembourg , Malaysia , Netherlands , Norway , Oman , Portugal , Slovenia , Spain , Turkey and United States . Teams in italics are no longer active. Union Cycliste Internationale The Union Cycliste Internationale ( French pronunciation: [ynjɔ̃ siklist ɛ̃tɛʁnɑsjɔnal] ; UCI ; English: International Cycling Union )

1022-837: The International Paralympic Committee (IPC), and the World Anti-Doping Agency (WADA). The IOC requires cities bidding to host the Olympics to provide a comprehensive strategy to protect the environment in preparation for hosting, and following the conclusion of the Games. The IOC has four major approaches to addressing environmental health concerns. Host cities have concerns about traffic congestion and air pollution, both of which can compromise air quality during and after venue construction. Various air quality improvement measures are undertaken before and after each event. Traffic control

1095-677: The Olympic Games , and FIAC cyclists competed against FICP members on only rare occasions. In 1992, the UCI reunified the FIAC and FICP, and merged them back into the UCI. The combined organisation then relocated to Aigle, close to the IOC in Lausanne. In 2004, the UCI constructed a 200-metre velodrome at the new World Cycling Centre adjacent to its headquarters. In September 2007 the UCI announced that it had decided to award ProTour status for

1168-564: The UCI Cyclo-cross World Championships . In mountain bike racing , the UCI Mountain Bike & Trials World Championships is the most important and prestigious competition each year. This includes the disciplines of cross-country and downhill . In addition, this event consists of world championship events for bike trials riding . In 2012 the first cross-country eliminator world championship

1241-729: The UCI Women's WorldTeams , who are invited to all UCI World Tour races. Between 1998 and 2015, the UCI Women's Road World Cup served as a season-long competition of elite-level one-day events. From 2016, the competition was replaced by the UCI Women's World Tour - which includes stage stages as well as one-day events, including many races used in the World Cup. The UCI Track Cycling World Championships for men and women offers individual and team championships in several track cycling disciplines. The UCI Track Cycling World Cup serves as

1314-746: The World Championships . After the 2022 Russian invasion of Ukraine , the UCI said that Russian and Belarusian teams were forbidden from competing in international events. It also stripped both Russia and Belarus of scheduled events. UCI was founded in 1900 in Paris by the national cycling sports organisations of Belgium, the United States, France, Italy, and Switzerland. It replaced the International Cycling Association (ICA) by setting up in opposition in

1387-537: The Xinjiang Papers . Detailed frameworks for environmental sustainability were prepared for the 2018 Winter Olympics and 2020 Summer Olympics in PyeongChang, South Korea , and Tokyo , Japan , respectively. In September 2024, the IOC revealed its list of candidates for the presidency, featuring Sebastian Coe , David Lappartient , Kirsty Coventry , and Juan Antonio Samaranch Salisachs among

1460-668: The territorial integrity of Ukraine. Yet, in the aftermath of this "scandal of sports and international law" the UCI negotiated with the Cycling Federation of Ukraine and, in November 2015, announced to remove the Free Rate Downhill Race officially from the UCI international calendar. Turkmenistan 's authoritarian leader Gurbanguly Berdimuhamedow was awarded the highest award of the Union Cycliste Internationale for his country's commitment to

1533-558: The "Olympic House" would be inaugurated on 23 June 2019 to coincide with its 125th anniversary. The Olympic Museum remains in Ouchy , Lausanne. Since 2002, the IOC has been involved in several high-profile controversies including taking gifts, its DMCA take down request of the 2008 Tibetan protest videos, Russian doping scandals , and its support of the Beijing 2022 Winter Olympics despite China's human rights violations documented in

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1606-537: The 28 IOSFs of Olympic summer sports and the seven IOSFs of Olympic winter sports. The continually increasing value of Olympic broadcasts has enabled the IOC to substantially increase financial support to IOSFs with each successive Games. The seven winter sports IFs shared US$ 85.8 million, €75 million in Salt Lake 2002 broadcast revenue. The IOC contributes Olympic marketing revenue to the programmes of various recognized international sports organizations, including

1679-544: The Beijing administrative area. Air quality improvement measures implemented by the Beijing government included replacing coal with natural gas, suspending construction, imposing strict dust control on construction sites, closing or relocating the polluting industrial plants, building long subway lines, using cleaner fluid in power plants, and reducing the activity by some of the polluting factories. There, levels of primary and secondary pollutants were reduced, and good air quality

1752-546: The Chain . In 2004 the UCI won the case, and in 2006 won the appeal. Voet had made various claims about UCI and Verbruggen's behavior related to the Laurent Brochard Lidocaine case at the 1997 UCI Road World Championships . In 2006, according to Cycling News, the UCI contacted Greg LeMond after an interview he did in 2006 with L'Equipe , and threatened to sue him for defamation. LeMond mentioned

1825-613: The IIHF decided to allow Canada to use nine non-NHL professional hockey players at the 1970 World Championships in Montreal and Winnipeg , Manitoba, Canada. The decision was reversed in January 1970 after Brundage declared that the change would put ice hockey's status as an Olympic sport in jeopardy. In response, Canada withdrew from international ice hockey competition and officials stated that they would not return until "open competition"

1898-507: The IOC and became the organisation's first marketing director. ISL and then Meridian continued in the established role as the IOC's sales and marketing agents until 2002. In collaboration with ISL Marketing and Meridian Management, Payne made major contributions to the creation of a multibillion-dollar sponsorship marketing programme for the organisation which, along with improvements in TV marketing and improved financial management, helped to restore

1971-509: The IOC's financial viability. The Olympic Movement generates revenue through five major programmes. The OCOGs have responsibility for domestic sponsorship, ticketing and licensing programmes, under the direction of the IOC. The Olympic Movement generated a total of more than US$ 4 billion (€2.5 billion) in revenue during the Olympic quadrennium from 2001 to 2004. The IOC distributes some of its revenue to organisations throughout

2044-668: The IOC's term for all entities and individuals involved in the Olympic Games. As of 2020 , 206 NOCs officially were recognized by the IOC. The IOC president has been Thomas Bach since 2013. Its stated mission is to promote Olympism throughout the world and to lead the Olympic Movement: All IOC members must swear to the following: "Honoured to be chosen as a member of the International Olympic Committee, I fully accept all

2117-855: The International Professional Cycling Federation ( Fédération Internationale de Cyclisme Professionnel or FICP). The UCI assumed a role coordinating both bodies. The FIAC was based in Rome , the FICP in Luxembourg, and the UCI in Geneva . The FIAC was the bigger of the two organisations, with 127 member federations across all five continents. It was dominated by the countries of the Eastern Bloc which were amateur. The FIAC arranged representation of cycling at

2190-498: The Olympic Movement to support the staging of the Olympic Games and to promote worldwide sport development. The IOC retains approximately 10% of the Olympic marketing revenue for operational and administrative costs. For the 2013–2016 period, the IOC had revenues of about US$ 5.0 billion, of which 73% were from broadcasting rights and 18% were from Olympic Partners. The Rio 2016 organising committee received US$ 1.5 billion and

2263-476: The Olympic symbols. When Brundage retired the IOC had US$ 2 million in assets; eight years later coffers had swollen, to US$ 45 million. This was primarily due to a shift in ideology toward expansion of the Games through corporate sponsorship and the sale of television rights. When Juan Antonio Samaranch was elected IOC president in 1980 his desire was to make the IOC financially independent. Samaranch appointed Canadian IOC member Richard Pound to lead

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2336-640: The President or upon the written request of at least one third of the members. Among others, the powers of the Session are: The number of all serving IOC members may not exceed 115. When named they became IOC members in their respective countries rather than representatives of their respective countries to the IOC. Categories of the IOC members include: Membership ends under the following circumstances: IOC recognizes 82 international sports federations (IFs): IOC awards gold, silver, and bronze medals for

2409-641: The ProSeries. The inaugural season of the ProSeries was planned to include 57 events, which were formerly World Tour, .HC or .1 events, but many were cancelled due to the worldwide COVID-19 pandemic of 2020–21. In events of the ProSeries, UCI WorldTeams may participate, up to a maximum of 70% in European races and 65% in other races. The rest of the teams participating may be UCI ProTeams , UCI Continental teams , or National teams. The inaugural UCI ProSeries calendar consisted of 57 events, of which 30 were one-day races (1.Pro) and 27 were stage races (2.Pro). Due to

2482-572: The Sochi 2014 organising committee received US$ 833 million. National Olympic committees and international federations received US$ 739 million each. In July 2000, when the Los Angeles Times reported on how the IOC redistributes profits from sponsorships and broadcasting rights , historian Bob Barney stated that he had "yet to see matters of corruption in the IOC", but noted there were "matters of unaccountability". He later noted that when

2555-686: The UCI Ethics Committee to investigate Pat McQuaid actions after the UCI Licence Commission denied team Katusha a place in the 2013 WorldTour – the action which was promptly reversed. Kimmage had been a racer and had a long history of investigating doping in the sport, including a book and, more recent to the suit, articles for the Sunday Times and L'Equipe which discussed doping and UCI. Greg LeMond, David Walsh and others voiced their support for Kimmage and

2628-693: The UCI World Tour. To expand the participation and popularity of professional road bicycle racing throughout the globe, the UCI develop a series of races collectively known as the UCI Continental Circuits for each region of the world. The UCI organize the Road World Championships (road race first held in 1959, time trial first held in 1994), as well as administer the premier tier UCI Women's World Tour races. The highest level teams in women's road cycling are

2701-654: The UCI administered the UCI Road World Cup , a season-long competition incorporating all the major one-day professional road races. In 2005 this was replaced by the UCI ProTour series which initially included the Grand Tour road cycling stage races (the Tour de France , Giro d'Italia and Vuelta a España ) and a wider range of other one-day and stage races. However, the three Grand Tour races withdrew from

2774-651: The UCI-commissioned Vrijman report, as well as Operacion Puerto , and called the body "corrupt". Another lawsuit was by Hein Verbruggen against WADA Chief Dick Pound in Swiss court regarding his comments about doping and the UCI. The lawsuit was settled by the parties in 2009. In 2011, the UCI sued Floyd Landis in Switzerland after Landis accused the body of several misdeeds, including

2847-645: The UN Agenda and to attend UN General Assembly meetings where it can take the floor. In 1993, the General Assembly approved a Resolution to further solidify IOC–UN cooperation by reviving the Olympic Truce . The IOC received approval in November 2015 to construct a new headquarters in Vidy , Lausanne. The cost of the project was estimated to stand at $ 156m. The IOC announced on 11 February 2019 that

2920-411: The aforementioned alleged coverup involving Lance Armstrong and the 2001 Tour de Suisse . In 2012 Cycling News reported that a District Court had ruled for UCI against Landis. In 2012 UCI president Pat McQuaid and former president Hein Verbruggen , as well as the UCI itself, sued journalist Paul Kimmage in Switzerland for defamation . In 2013, the President of Cycling Federation of Russia called

2993-421: The cuffs and collar of their clothing. For decades, professional road cyclists refused to wear helmets . The first serious attempt by the UCI to introduce compulsory helmet use was the 1991 Paris–Nice race, which resulted in a riders' strike, and the UCI abandoned the idea. After the death of Andrei Kivilev in the 2003 Paris–Nice, new rules were introduced on 5 May 2003, with the 2003 Giro d'Italia being

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3066-662: The excavation of the site for the Games. Other local residents, construction workers, and onsite archaeologists faced similar exposures and risks. The Olympic Games can affect water quality in several ways, including runoff and the transfer of polluting substances from the air to water sources through rainfall. Harmful particulates come from natural substances (such as plant matter crushed by higher volumes of pedestrian and vehicle traffic) and man-made substances (such as exhaust from vehicles or industry). Contaminants from these two categories elevate amounts of toxins in street dust. Street dust reaches water sources through runoff, facilitating

3139-480: The first major race affected. The 2003 rules allowed for discarding the helmets during final climbs of at least 5 kilometres in length; subsequent revisions made helmet use mandatory at all times. The UCI was accused of accepting a bribe in the 1990s to introduce the keirin , a track cycling race, into the Olympics. An investigation by the BBC claims that the UCI was paid approximately $ 3,000,000 by Japanese sources to add

3212-473: The first sport to introduce the test for EPO". The UCI has sued or threatened to sue several cyclists, journalists, and writers for defamation after they accused it of corruption or other misdeeds related to doping. Many, though not all, of these suits are heard in the Est Vaudois district court of Vevey , Switzerland In 2002 UCI sued Festina soigneur Willy Voet over claims in his book Breaking

3285-666: The first time ever to an event outside of Europe; the Tour Down Under in Adelaide, Australia. The announcement followed negotiations between UCI President Pat McQuaid and South Australian Premier Mike Rann . In 2013 Tracey Gaudry became the first woman appointed as vice president of the UCI. After the 2022 Russian invasion of Ukraine , the UCI said that Russian and Belarusian teams are forbidden from competing in international events. It also stripped both Russia and Belarus of scheduled events. In 3 May 2023, UIC approved

3358-492: The food chain. One promise made to Londoners for the 2012 Olympic Games was that the Olympic Park would be a "blueprint for sustainable living." However, garden allotments were temporarily relocated due to the building of the Olympic stadium. The allotments were eventually returned. However, the soil quality was damaged. Further, allotment residents were exposed to radioactive waste for five months prior to moving, during

3431-574: The goals of improved air quality and water quality , sustainable energy, improved waste management, and environmental education. These projects included industrial plant relocation or closure, furnace replacement, introduction of new emission standards, and more strict traffic control. In 2009, the UN General Assembly granted the IOC Permanent Observer status. The decision enables the IOC to be directly involved in

3504-568: The greatest need. The continued success of the TOP programme and Olympic broadcast agreements has enabled the IOC to provide increased support for the NOCs with each Olympic quadrennium. The IOC provided approximately US$ 318.5 million to NOCs for the 2001–2004 quadrennium. The IOC is the largest single revenue source for the majority of IOSFs , with contributions that assist them in developing their respective sports. The IOC provides financial support to

3577-423: The initiative as Chairman of the "New Sources of Finance Commission". In 1982 the IOC drafted International Sport and Leisure , a Swiss sports marketing company, to develop a global marketing programme for the Olympic Movement. ISL developed the programme, but was replaced by Meridian Management, a company partly owned by the IOC in the early 1990s. In 1989, a staff member at ISL Marketing, Michael Payne , moved to

3650-507: The interests of the International Olympic Committee and Olympic Movement." The IOC was created by Pierre de Coubertin , on 23 June 1894 with Demetrios Vikelas as its first president. As of February 2022, its membership consists of 105 active members and 45 honorary members. The IOC is the supreme authority of the worldwide modern Olympic Movement. The IOC organises the modern Olympic Games and Youth Olympic Games (YOG), held in summer and winter every four years. The first Summer Olympics

3723-636: The number of tracks, or velodromes , that each nation claimed. France had 18 votes, the highest number, and Germany and Italy 14 each. Britain had eight, a number the writer Bill Mills said was acquired "by including many rather doubtful grass tracks." In 1965, under the pressure of the IOC , when the Olympics was an amateur event, the UCI created two subsidiary bodies, the International Amateur Cycling Federation ( Fédération Internationale Amateur de Cyclisme or FIAC) and

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3796-627: The one-day world championships for BMX racing (bicycle motocross) cycling. Unlike other types of cycling disciplines, trials is a sport where the main factors are the stability and the control of the bike in extreme situations where speed also plays an important role. The first UCI Trials World Championships took place in 1986. Fourteen years later, in 2000, the UCI Trials World Cup made its debut. The most World Champions titles have been won by riders from Belgium, France, Germany, Spain and Switzerland. The UCI Trials World Youth Games

3869-412: The planning of the two events from one another, and to improve the financial balance of the IOC, which receives a proportionally greater income in Olympic years. Since 1995, the IOC has worked to address environmental health concerns resulting from hosting the games. In 1995, IOC President Juan Antonio Samaranch stated, "the International Olympic Committee is resolved to ensure that the environment becomes

3942-445: The race to the Olympic programme, something denied by the UCI. When Floyd Landis confessed to using performance-enhancing drugs throughout his career in May 2010, he alleged that the UCI had accepted a bribe from Lance Armstrong to cover up an EPO positive after the 2001 Tour de Suisse. Discussing doping in 2012, UCI president Pat McQuaid emphasised the fact that his organisation was "the first entity to introduce blood tests,

4015-585: The responsibilities that this office brings: I promise to serve the Olympic Movement to the best of my ability. I will respect the Olympic Charter and accept the decisions of the IOC. I will always act independently of commercial and political interests as well as of any racial or religious consideration. I will fully comply with the IOC Code of Ethics. I promise to fight against all forms of discrimination and dedicate myself in all circumstances to promote

4088-405: The series, and in July 2008 all the major professional teams threatened to quit the series, putting its future in doubt. The ProTour was replaced as a ranking system the following year by the UCI World Ranking , which added the three Grand Tours , two early season stage races, and five more one-day classics to the 14 remaining ProTour events. The World Ranking and ProTour merged in 2011, becoming

4161-494: The seven contenders. The other candidates included Prince Faisal bin Hussein and the presidents of the international skiing and gymnastics federations, Johan Eliasch and Morinari Watanabe . It is an association under the Swiss Civil Code ( articles 60–79 ). The IOC Session is the general meeting of the members of the IOC, held once a year in which each member has one vote. It is the IOC's supreme organ and its decisions are final. Extraordinary Sessions may be convened by

4234-482: The sort that affected Graeme Obree in the 1990s and the banning in 2000 of all frames that did not have a seat tube. The winner of a UCI World Championship title is awarded a rainbow jersey , white with five coloured bands on the chest. This jersey can be worn in only the discipline, specialty and category of competition in which it was awarded, and expires on the day before the following world championship event. Former champions are permitted to wear rainbow piping on

4307-441: The sport. The UCI organize the Road World Championships (road race first held in 1921, time trial first held in 1994), as well as administer the premier tier UCI World Tour and second tier UCI ProSeries races. The highest level teams in men's road cycling are the UCI WorldTeam , who are obliged to take part in all UCI World Tour races. On top of having organized the Road World Championships since 1921, from 1989 until 2004,

4380-586: The spotlight is on the athletes, it has "the power to eclipse impressions of scandal or corruption", with respect to the Olympic bid process. The IOC provides TOP programme contributions and broadcast revenue to the OCOGs to support the staging of the Olympic Games: NOCs receive financial support for training and developing their Olympic teams, Olympic athletes, and Olympic hopefuls. The IOC distributes TOP programme revenue to each NOC. The IOC also contributes Olympic broadcast revenue to Olympic Solidarity, an IOC organisation that provides financial support to NOCs with

4453-401: The state-sponsored "full-time amateur athlete" of Eastern Bloc countries further eroded the notion of the pure amateur, as it put Western, self-financed amateurs at a disadvantage. The Soviet Union entered teams of athletes who were all nominally students, soldiers, or working in a profession, but many of whom were paid by the state to train on a full-time basis. Nevertheless, the IOC held to

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4526-424: The third dimension of the organization of the Olympic Games, the first and second being sport and culture." Acting on this statement, in 1996 the IOC added the "environment" as a third pillar to its vision for the Olympic Games. In 2000, the "Green Olympics" effort was developed by the Beijing Organizing Committee for the Beijing Olympic Games. The Beijing 2008 Summer Olympics executed over 160 projects addressing

4599-487: The top three competitors in each sporting event. Other honours. During the first half of the 20th century the IOC ran on a small budget. As IOC president from 1952 to 1972, Avery Brundage rejected all attempts to link the Olympics with commercial interests. Brundage believed that corporate interests would unduly impact the IOC's decision-making. Brundage's resistance to this revenue stream left IOC organising committees to negotiate their own sponsorship contracts and use

4672-441: The track: unpaced, human-paced and mechanically paced. They were promoted for three classes of bicycle: solos, tandems and unusual machines such as what are now known as recumbents, on which the rider lies horizontal. Distances were imperial and metric, from 440 yards and 500 metres to 24 hours. The UCI banned recumbents in competitions and in record attempts on 1 April 1934. Later changes included restrictions on riding positions of

4745-409: The traditional rules regarding amateurism. Near the end of the 1960s, the Canadian Amateur Hockey Association (CAHA) felt their amateur players could no longer be competitive against the Soviet full-time athletes and other constantly improving European teams. They pushed for the ability to use players from professional leagues, but met opposition from the IIHF and IOC. At the IIHF Congress in 1969,

4818-430: The transfer of toxins to environments and communities that rely on these water sources. In 2013, researchers in Beijing found a significant relationship between the amount of PM2.5 concentrations in the air and in rainfall. Studies showed that rainfall had transferred a large portion of these pollutants from the air to water sources. Notably, this cleared the air of such particulates, substantially improving air quality at

4891-413: The venues. De Coubertin was influenced by the aristocratic ethos exemplified by English public schools . The public schools subscribed to the belief that sport formed an important part of education but that practicing or training was considered cheating. As class structure evolved through the 20th century, the definition of the amateur athlete as an aristocratic gentleman became outdated. The advent of

4964-402: Was developed. Contaminated soil was consolidated into four containment areas within the site, which left the remaining areas available for recreational use. The site contained waste materials that then no longer posed a threat to surrounding aquifers. In the 2006 Games in Torino, Italy, soil impacts were observed. Before the Games, researchers studied four areas that the Games would likely affect:

5037-405: Was held in Athens , Greece, in 1896 ; the first Winter Olympics was in Chamonix , France, in 1924 . The first Summer YOG was in Singapore in 2010 , and the first Winter YOG was in Innsbruck in 2012 . Until 1992, both the Summer and Winter Olympics were held in the same year. After that year, however, the IOC shifted the Winter Olympics to the even years between Summer Games to help space

5110-402: Was held in Saalfelden. The UCI Mountain Bike World Cup is a series of races, held annually since 1991. At the 2011 World Championships held in Champéry, Switzerland the UCI announced a controversial new sponsorship deal with the previously unheard of RockyRoads Network. The season-long competition is known as the UCI BMX Supercross World Cup and the UCI BMX World Championships serves as

5183-408: Was instituted. Beginning in the 1970s, amateurism was gradually phased out of the Olympic Charter. After the 1988 Games, the IOC decided to make all professional athletes eligible for the Olympics, subject to the approval of the IFOSs. The Games were originally awarded to Denver on 12 May 1970, but a steep rise in costs led to Colorado voters' rejection on 7 November 1972, by 60% of the vote, of

5256-458: Was recorded during the Beijing Olympics on most days. Beijing also sprayed silver iodide in the atmosphere to induce rain to remove existing pollutants from the air. Soil contamination can occur during construction. The Sydney Olympic Games of 2000 resulted in improving a highly contaminated area known as Homebush Bay. A pre-Games study reported soil metal concentrations high enough to potentially contaminate groundwater. A remediation strategy

5329-518: Was traditionally a massed start but did not have to be: Britain organised its road championship before the war as a time trial, the National Cyclists Union believing it best to run races against the clock, and without publicity before the start, to avoid police attention. Continental European organisers generally preferred massed races on circuits, fenced throughout or along the finish to charge for entry. The original records were on

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