Kim Collins was the only Kittitian participant in the men's 100m sprint, which began its Qualifications round on 14 August. Collins, who was placed in heat two, ranked second in the event with a time of 10.17 seconds. Collins was 0.01 seconds slower than Asafa Powell of Jamaica, who was the fastest in Collins' heat. Overall, Kim Collins ranked fourth out of 80 athletes and was 0.04 seconds slower than Tyrone Edgar of the United Kingdom, who ranked first in qualifications overall.