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 1952 Summer Olympics – Women's 100 metres Athletics at the 1952 Summer Olympics – Women's 100 metres The women's 100 metres sprint event at the 1952 Olympic Games took place on July 21 and July 22. The final was won by Australian Marjorie Jackson, who equalled the world record set in 1936 by Helen Stephens. The first round was held on July 21. The first two runners of each heat qualified for the second round. Heat 1 Heat 2 Heat 3 Heat 4 Heat 5 Heat 6 Heat 7 Heat 8 Heat 9 Heat 10 Heat 11 Heat 12 The first three runners from each heat qualified