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
Speed skating at the 1960 Winter Olympics – Men's 1500 metres and on artificially frozen ice. "(**)" The record was set in a high altitude venue (more than 1000 metres above sea level) and on naturally frozen ice. Yevgeny Grishin who was the first speed skater to defend his 500 metres Olympic title was also able to repeat his win in the 1500 metres event. In 1956 he shared the win with fellow countryman Yuri Mikhaylov. This time Grishin tied with Roald Aas. Grishin was the second speed skater to win two gold medals in 1500 metres competitions after Clas Thunberg won in 1924 and 1928. Speed skating at the 1960