 Jamaican Kerron Stewart had looked impressive in the earlier rounds, but in the final, Shelly-Ann Fraser finished well ahead of the field with Stewart and Sherone Simpson getting joint silver medals after recording identical times.This made Jamaica the first country to get a clean sweep of the medals in the women's 100 m at the Olympic Games.On Tuesday, 19 August, Shericka Williams won silver in the women's 400 m by passing the favourite Sanya Richards (who herself is Jamaican- born), on the home straight.