South Africa's Wayde van Niekerk breaks 400m world record - YouTube
Wayde van Niekerk smashes Michael Johnson's record to claim 400m gold | Rio 2016 | The Guardian
Norway's Warholm breaks 400 metres hurdles world record | Reuters
Breanna Clark breaks own world record to defend 400m Paralympic title - OlympicTalk | NBC Sports
Brilliant Van Niekerk smashes 400m world record | Reuters
We've All Been Waiting For This... || The 400 Meter World Record - YouTube
Van Niekerk betters 400m world record
Dalilah Muhammad Wins Gold - 400-Meter Hurdle Finals
Two Americans Broke the World Record in the 400 Hurdles. Only One Could Win Gold. - WSJ
World Athletics Championships 2022: Photo proves Sydney Mclaughlin is a cheat code as she smashes 400m hurdles world record
McLaughlin obliterates world 400m hurdles record with 50.68 in Oregon | REPORT | World Athletics
400 metres at the Olympics - Wikipedia
Tokyo Olympics: Norway's Karsten Warholm smashes world record in race for the ages to win 400m hurdle race - India Today
Men's 400 Meters: South African Wayde van Niekerk Shatters World Record | Runner's World
South Africa's Wayde van Niekerk Breaks Olympics 400m World Record - Face2Face Africa
Fastest since 1985, Naser wins women's world 400-meter
/cloudfront-us-east-2.images.arcpublishing.com/reuters/NTS6U3USSBIULPSIC6WG3TIB3E.jpg "American McLaughlin breaks women's 400m hurdles world record | Reuters")
American McLaughlin breaks women's 400m hurdles world record | Reuters
Karsten Warholm smashes 400m hurdles world record in one of greatest races in history | Tokyo Olympic Games 2020 | The Guardian
Wayde van Niekerk sets a 400-meter record that no one saw coming - The Washington Post
400 metres - Wikipedia
:format(png)/cdn.vox-cdn.com/uploads/chorus_image/image/50388485/Screen_Shot_2016-08-14_at_9.02.30_PM.0.0.png "Olympics 2016 results: Wayde van Niekerk sets world record from lane 8 in men's 400m run - SBNation.com")
Olympics 2016 results: Wayde van Niekerk sets world record from lane 8 in men's 400m run - SBNation.com
World 400m champion banned for two years
Karsten Warholm Sets World Record in 400-Meter Hurdles - The New York Times
400 METER WORLD RECORD || WHO WILL BREAK IT? - YouTube
