Competing at her second Olympic Games, Feta Ahamada was notable for carrying the flag of Comoros at the closing ceremony. She was the oldest person to compete for Comoros at the Games, aged 25. She qualified for the Olympics via a wildcard as her best time, 12.29 seconds set at the 2011 World Championships in Athletics, was 0.91 seconds slower than the "B" qualifying standard for her event, the women's 100 metres. Ahamada said the London Games would be an opportunity to allow her to improve her performance and record better times. She took part in the preliminary round of the women's 100 metres and was drawn in the first heat. Ahamada finished first with a time of 11.81 seconds to qualify for the heats stage. In the heats, held on the same day as the preliminary round, Ahamada finished seventh out of eight athletes in heat four with a time of 11.86 seconds. She finished 50th out of 78 athletes overall, and did not progress in the semi-finals because she was 0.58 seconds slower than the slowest qualifier.