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 – Men's 4 × 100 metres relay Trinidad and Tobago and France, who earned bronze, and the 2015 world runners-up, China. For the third Olympics in a row Usain Bolt had won the 100 metres and 200 metres. In the previous two Olympics the Jamaican team with Bolt had won the gold in the relay. Jamaica with Bolt; his predecessor as world record holder Asafa Powell; and the equal second fastest man in history, Yohan Blake, were favourites. Powell had been on the 2008 winning team, Blake had been on the 2012 winning team. USA were expected to be the strongest opposition with the Olympic 100m silver