Robert Kajuga was one of the two oldest male athletes to represent Rwanda at the London Olympics, at 27 years old. He had not taken part in any previous Olympic Games. Kajuga qualified for the Games via qualification standards because his fastest time of 28 minutes and three seconds, set at the 2012 African Championships in Athletics which placed him fifth, was two seconds faster than the "B" qualifying standard for the men's 10,000 metres. He was the second Rwandan track and field athlete to attain qualification. He competed in the event, held on 4 August, finishing 14th out of 26 athletes overall, with a time of 27 minutes, 56.67 seconds. Kajuga reset his personal best but was 35 seconds slower than the Rwandan national record. Post-race, Kajuga said he was "really happy" with his performances and described his Olympic Games as a "good experience".