Career
Mpuang represented South Africa at the 2008 Summer Olympics in Beijing. He competed at the 4x100 metres relay together with Leigh Julius, Ishmael Kumbane and Hannes Dreyer. In their qualification heat they did not finish due to a mistake in the baton exchange and they were eliminated.
He also took part in the 200 metres individual, running the distance in 20.87 seconds and only placing sixth in his heat.
With 21.04 seconds he finished seventh in his second round heat, failing to qualify for the semi finals. Personal bests 100 metres 10.35 1.80 Pretoria 27 March 2008 Progression Report Honours.