At the age of 19, Chauzje Choosha made her Olympian debut. Choosha qualified via a wildcard and replaced long-distance runner Tonny Wamulwa, who withdrew before the opening of the Games because of injuries sustained in a road traffic accident on 9 July. She took part in the women's 100 metres in the preliminary round on 3 August and was drawn in heat one, finishing fourth out of eight athletes, with a time of 12:29 seconds. As of 2016, the time is her personal best. Overall she finished 57th out of 78 competitors, and did not advance into the first round because her fastest time was 0.05 seconds slower than the slowest athlete who progressed.