McLaughlin sets the world record in the women's 400 hurdles
Alison dos Santos upset Karsten Warholm in the 400-meter hurdles. - The New York Times
400 Metres
Dalilah Muhammad breaks through, sets world record in 400-meter hurdles - The Washington Post
Femke Bol breaks 41-year world record in the women's indoor 400 meters | CNN
Men's 400 Meters: South African Wayde van Niekerk Shatters World Record | Runner's World
Van Niekerk betters 400m world record
McLaughlin obliterates world 400m hurdles record with 50.68 in Oregon | REPORT | World Athletics
400 METER WORLD RECORD || WHO WILL BREAK IT? - YouTube
Karsten Warholm and Rai Benjamin Both Broke a Record, But Only One Won Gold - The New York Times
Wayde van Niekerk sets a 400-meter record that no one saw coming - The Washington Post
McLaughlin breaks own 400 meters hurdles record with 'Track Town, USA' magic | Reuters
400 metres - Wikipedia
Breanna Clark breaks own world record to defend 400m Paralympic title - OlympicTalk | NBC Sports
13-Year-Old 47s 400m WORLD RECORD! - YouTube
Sydney McLaughlin breaks her own world record in 400m hurdles at World Athletics Championships - CBSSports.com
Michael Johnson Sevilla 1999: Men's 400m world record - YouTube
Wayde van Niekerk smashes Michael Johnson's record to claim 400m gold | Rio 2016 | The Guardian
Wayde van Niekerk: Five things to know about the Olympic 400m champion and world record holder
Two Americans Broke the World Record in the 400 Hurdles. Only One Could Win Gold. - WSJ
/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
Sydney McLaughlin breaks her own 400-meter hurdles world record | CNN
: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
Sydney McLaughlin breaks her own world record in 400 hurdles - Los Angeles Times
