100 metres at the Olympics 40 in 2000 and reached the Olympic semi-finals four years later. (Ottey is also the most frequent participant having competed in the Olympic 100 m an unrivalled six times from 1984 to 2004). The first women's champion, Betty Robinson in 1928, remains the youngest gold medallist for the event at 16 years old, while a 32-year-old Linford Christie became the oldest 100 m Olympic champion in 1992. Since introduction of testing by the IAAF in the early-20th century, female sprinters may be subject to gender verification. This rule was first formally applied to the 100 m at the 1968 Mexico
Athletics at the 1906 Intercalated Games – Men's 100 metres their times recorded. Other athletes were ranked visually and in some instances the remaining distance between an athlete and the one behind him was documented. Four of the six finalists were Americans and two of them took first and second place – Archie Hahn and Fay Moulton. Australia's Nigel Barker came third. Hahn's win built upon his victory from the 1904 Olympic Games. He is sometimes credited with being the first man to retain the Olympic 100 m, but this is disputed as the Intercalated Games have not received official recognition as part of the Olympic series from the International