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 2016 Summer Olympics to celebrate winning Bahrain's first Olympic gold in any sport. In the women's 400 m Allyson Felix was stopped from winning an historic fifth Olympic gold by Shaunae Miller of the Bahamas, who dove at the line to win the race. Men's 800 metres world record holder David Rudisha defended his 800 m Olympic title, being the first man in over half a century to achieve that. A surprise victory for the hosts came via Thiago Braz da Silva, who added ten centimetres to his previous best to win in an Olympic record of 6.03 m ahead of world record