The 100-yard dash is a track and field event of 100 yards or 91.44 metres. It was part of the Commonwealth Games until 1966, and was included in the decathlon of the Olympics, at least in 1904. It is not generally used in international events. However, it is still occasionally run in the United States in certain competitions. Walter Halben Butler (1852–1931) is credited with being the first to run the race in 10 seconds.