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
100 metres at the Olympics also compete individually in the Olympic 200 metres and with their national teams in the Olympic 4×100 metres relay. Nine men have achieved the 100 metres and 200 metres 'Double' at the same Olympic Games - Archie Hahn (1904), Ralph Craig (1912), Percy Williams (1928), Eddie Tolan (1932), Jesse Owens (1936), Bobby Morrow (1956), Valeriy Borzov (1972), Carl Lewis (1984), and Usain Bolt (2008, 2012, 2016). Four of these men were also members of the winning team in the x100 meters relay at the same games - Jesse Owens (1936), Bobby Morrow (1956), Carl Lewis (1984), and Usain Bolt (2008,