The 2012 Summer Games marked Mike Tebulo's Olympic début. He was the only male to represent Malawi at the Games and he was 27 years old at the time. Tebulo qualified for the Olympics via a wildcard, as his best time of two hours, 18 minutes and 31 seconds set at the 2010 Commonwealth Games in New Delhi, was 31 seconds slower than the "B" qualifying standard, for his event, the men's marathon. He competed in the men's marathon on 12 August, finishing 44th out of 85th finishers, with a time of 2 hours, 19 minutes and 11 seconds. As of 2016, the time is his personal best.