Wayde Van Niekerk sets world record in 400 meterWayde Van Niekerk shattered the 17-year-old 400m world record to win South Africa's first gold at the Rio games.SI Staff|Share on FacebookShare on XAdd us on Wayde Van Niekerk shattered the 17-year-old 400m world record to win South Africa's first gold at the Rio games.Published Aug 15, 2016 | Modified Aug 15, 2016SI STAFFShare on FacebookShare on XHome/Olympics