The Winter Olympic Games is a major international multi-sport event held once every four years for sports practiced on snow and ice. The first Winter Olympic Games, the 1924 Winter Olympics, were held in Chamonix, France. The modern Olympic Games were inspired by the ancient Olympic Games, which were held in Olympia, Greece, from the 8th century BC to the 4th century AD. Baron Pierre de Coubertin founded the International Olympic Committee (IOC) in 1894, leading to the first modern Summer Olympic Games in Athens, Greece in 1896. The IOC is the governing body of the Olympic Movement, with the Olympic Charter defining its structure and authority.
Michellie Yvonne Jones is an Australian triathlete. She has won two ITU Triathlon World Championships, an Olympic silver medal, and the 2006 Ironman World Championship. She won a gold medal at the 2016 Summer Paralympics as a guide for Katie Kelly, when paratriathlon made its debut at the Paralympics.
Mariana Ohata is an athlete from Brazil, who competes in triathlon.
Dmitry Vladimirovich Gaag is an athlete from Kazakhstan, who competes in triathlon. Gaag competed at the first Olympic triathlon at the 2000 Summer Olympics. He took fourth place with a total time of 1:49:03.57.
Brent McMahon is a triathlete from Canada.
Athletes from Belarus began their Olympic participation at the 1952 Summer Games in Helsinki, Finland, as part of the Soviet Union. After the Soviet Union disbanded in 1991, Belarus, along with four of the other fourteen former Soviet republics, competed in the 1992 Winter Olympics as the Unified Team. Later in 1992, Belarus joined eleven republics to compete as the Unified Team at the Summer Games in Barcelona, Spain. Two years later, Belarus competed for the first time as an independent nation in the 1994 Winter Olympics, held in Lillehammer, Norway.
Kelli White is an American former sprinter. She won two gold medals in the World Championships in Paris in 2003. However, on June 18, 2004, she was stripped of her medals, because she tested positive on a drug test. She retired from professional track in 2006.
Rashid Ramzi is a Moroccan-Bahraini track and field athlete competing internationally for Bahrain in the 800 metres and 1500 metres. Ramzi was investigated by the IAAF after the 2008 Summer Olympics and was stripped of his gold medal for doping.
This article is about the history of competitors at the Olympic Games using banned athletic performance-enhancing drugs.
Valeriy Viktorovich Borchin is a race walker from Russia who won the 2008 Olympic gold medal and was World champion over the 20 km distance. His World Championship was retroactively stripped in 2015 due to doping.
Izabela Dragneva-Rifatova is a retired weightlifter from Bulgaria, who is best known for being the first female weightlifter to be stripped of her medal and results and disqualified from an Olympic games for cheating. She twice competed for her native country at the Summer Olympics: 2000 and 2004. She won the silver medal in the women's – 53 kg division at the 1998 World Weightlifting Championships in Lahti.
Yuliya Oleksandrivna Yelistratova is a Ukrainian professional triathlete, European U23 champion of the year 2009, Number 1 in the ITU ranking of the year 2009 with by far the highest “total number of races” (6), several times national champion in various categories and member of the Ukrainian national team. She competed at the 2008, 2012 and 2016 Summer Olympics.
The athletics competitions at the 2012 Olympic Games in London were held during the last 10 days of the Games, on 3–12 August. Track and field events took place at the Olympic Stadium in east London. The road events, however, started and finished on The Mall in central London.
The triathlon events at the 2012 Summer Olympics were held in Hyde Park in London, United Kingdom, with the women's triathlon held on 4 August and the men's on 7 August. 110 triathletes from 39 countries competed with 55 men and 55 women competing. The races were held over the "international distance" and consisted of 1.5 kilometres (0.93 mi) swimming, 43 kilometres (27 mi) road cycling, and 10 kilometres (6.2 mi) road running.
The women's triathlon was one of the triathlon events at the 2012 Summer Olympics in London, United Kingdom. It took place on 4 August 2012, featuring 55 women from 31 countries. It was the fourth appearance of an Olympic women's triathlon event since the first at the 2000 Olympics in Sydney, Australia. The race was around Hyde Park, a 1.42 km2 park in central London. The race was held over the "international distance" and consisted of 1.5 kilometres (0.93 mi) swimming, 43 kilometres (27 mi) road cycling, and 10 kilometres (6.2 mi) road running.
Eva-Maria Gradwohl is a retired Austrian long-distance and marathon runner. She is also four-time Austrian national champion in half-marathon, three-time in marathon, and two-time in 10-km road run. In 2010 Gradwohl retired from her sporting career, after refusing to take a doping test; according to NADA director Andreas Schwab, refusing to undergo a doping test was considered a positive test, and would be an obvious breach of the rules imposed in every sporting competition.
The 100 metres at the Summer Olympics has been contested since the first edition of the multi-sport event. The men's 100 metres has been present on the Olympic athletics programme since 1896. The 100 metres is considered one of the blue ribbon events of the Olympics and is among the highest profile competitions at the games. It is the most prestigious 100 metres race at an elite level and is the shortest sprinting competition at the Olympics – a position it has held at every edition except for a brief period between 1900 and 1904, when a men's 60 metres was contested.
Switzerland 
