Motsapi Moorosi was 27 years old at the time of the Munich Olympics, and was making his only Olympic appearance. On 31 August, he participated in the first round of the men's 100 meters, and was drawn into heat six. He finished the race with a time of 10.74 seconds, sixth out of seven in his heat, and he was unable to advance further in the competition. The gold medal was eventually won in 10.14 seconds by Valeriy Borzov of the Soviet Union, the silver medal was earned by Robert Taylor of the United States, and the bronze was taken by Lennox Miller of Jamaica.