Claudette Mukasakindi was the oldest athlete to represent Rwanda at the London Games at the age of 29. She had not participated in any previous Olympic Games. Mukasakindi attained qualification into the Games because her fastest time of two hours, 40 minutes and 18 minutes, set at the 2012 Cagliari Marathon, was two minutes and 42 seconds faster than the "B" qualifying standard for the women's marathon. She was initially denied entry into the Games because the world athletics governing body, the International Association of Athletics Federations, did not recognise the Cagliari Marathon as an eligible event for qualification. Injuries and poor performances from other athletes allowed her to enter the Olympics. Mukasakindi participated in the marathon, held on 5 August, finishing 101st out of 107 competitors, with a time of two hours, 51 minutes and seven seconds.