Hadhari Djaffar was 21 years old at the time of these Games. He was already a veteran of the 1996 Summer Olympics, and would later go on to represent the Comoros at the 2004 Summer Olympics. On 22 September, he participated in the first round heats of the men's 100 metres and was drawn into heat seven. He completed the race in a time of 10.68 seconds, seventh out of nine competitors in his heat. His time was insufficient to advance, as 10.48 seconds was the slowest qualifying time. The gold medal was eventually won in 9.87 seconds by Maurice Greene of the United States, the silver was won by Ato Boldon of Trinidad and Tobago, and the bronze was earned by Obadele Thompson of Barbados.