Wayde van Niekerk is a South African track and field sprinter who competes in the 200 and 400 metres. In the 400 metres, he is the current world and Olympic record holder, having set the record when he won the event at the 2016 Olympics. Wayde van Niekerk (South Africa) set the men's 400 m world record of 43.03 in Rio de Janeiro, Brazil on August 14, 2016. It is the world record today. Wiki link