Late bloomer in the NBA. In shooting there have been two figures of note whose accomplishments occurred in their sixties or later. Joshua Millner of Britain was 61 when he won his Olympic gold medal in Free rifle, 1,000 yards. Swedish marksman Oscar Swahn won two Olympic gold medals at the age of 60 and one at the age of 64. He won his last medal, silver, at 72 making him the oldest medalist. In athletics Philip Rabinowitz set a sprinting record for centenarians. Jonah Barrington, a squash player, overcame alcoholism to later become a 6 times British Open Squash champion, and
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