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The 200 metres (also spelled 200 meters) is a sprint running event. On an outdoor 400 m track, the race begins on the curve and ends on the home straight, so a combination of techniques are needed to successfully run the race. A slightly shorter race, called the ''stadion'' and run on a straight track, was the first recorded event at the ancient Olympic Games. The 200 m places more emphasis on speed endurance than shorter sprint distances as athletes rely on different energy systems during the longer sprint. In the United States and elsewhere, athletes previously ran the 220-yard dash (201.168 m) instead of the 200 m (218.723yards), though the distance is now obsolete. The standard adjustment used for the conversion from times recorded over 220 yards to 200 m times is to subtract 0.1 seconds, but other conversion methods exist. The race attracts runners from other events, primarily the 100 metres, wishing to double up and claim both titles. This feat has been achieved by men ten times at the Olympic Games, by; Archie Hahn in 1904, Ralph Craig in 1912, Percy Williams in 1928, Eddie Tolan in 1932, Jesse Owens in 1936, Bobby Morrow in 1956, Valeriy Borzov in 1972 and Carl Lewis in 1984. It was most recently accomplished by Jamaica's Usain Bolt in Beijing 2008 who repeated the feat in London 2012. And it has been accomplished by women six or seven times, depending on how you look at it, by; Fanny Blankers-Koen in 1948, Marjorie Jackson in 1952, Betty Cuthbert in 1956, Wilma Rudolph in 1960, Renate Stecher in 1972 and Florence Griffith-Joyner in 1988. Marion Jones finished first in both races in 2000 but was later disqualified and stripped of her medals after admitting to taking performance-enhancing drugs. An Olympic double of 200 m and 400 m was first achieved by Valerie Brisco-Hooks in 1984, and later by Michael Johnson from the United States and Marie-José Pérec of France both in 1996. Bolt is the only man to repeat as Olympic champion, Bärbel Wöckel (née Eckert) and Veronica Campbell-Brown are the two women who have repeated as Olympic champion. The men's world record holder is Usain Bolt, who ran 19.19 s at the 2009 World Championships. The women's world record holder is Florence Griffith-Joyner of the United States, who ran 21.34 s at the 1988 Summer Olympics. The reigning Olympic champions are Usain Bolt (Jamaica) and Allyson Felix (USA). The reigning World Champions are Bolt and Dafne Schippers. Races run with an aiding wind measured over 2.0 meters per second are not acceptable for record purposes. == All-time fastest 200 m athletes == *Only the ''fastest time for each athlete'' is listed. *A = Altitude 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「200 metres」の詳細全文を読む スポンサード リンク
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