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
Women's 100 metres world record progression the hundredth of a second for these events. Wyomia Tyus's 1968 Olympic gold medal performance and Renate Stecher's 1972 Olympic championship win, both in 11.07, were the fastest recorded fully electronic 100-metre races to that time and were ratified as world records. However, Tyus's 11.07 was later adjusted to 11.08. There is controversy over Griffith-Joyner's world record as questions have been raised as to whether the wind actually was ever zero, as indicated by the trackside anemometer. The triple-jump anemometer, some 10 metres away, read 4.3 m/s, more than double the acceptable limit. Despite the controversy, the record was ratified