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 1948 Summer Olympics – Men's 100 metres 6 Heat 7 Heat 8 Heat 9 Heat 10 Heat 11 Heat 12 The fastest three runners in each of the four heats advanced to the semifinal round. Heat 1 Heat 2 Heat 3 Heat 4 The fastest three runners in each of the two heats advanced to the final round. Heat 1 Heat 2 Key: =OR = Equalled Olympic record; DNF = Did not finish; DQ = Disqualified Key: =OR = Equalled Olympic record Athletics at the 1948 Summer Olympics – Men's 100 metres The men's 100 metres sprint event at the 1948 Olympic Games in London, England, we