Women's 400m World Record is 48.25 – Žiga P. Škraba
400 METER WORLD RECORD || WHO WILL BREAK IT? - YouTube
Wayde van Niekerk: Five things to know about the Olympic 400m champion and world record holder
South Africa's Wayde van Niekerk Sets World Record in the 400 - WSJ
Sydney McLaughlin Breaks Her Own 400-Meter Hurdles World Record - The Seattle Medium
Karsten Warholm Sets World Record in 400-Meter Hurdles - The New York Times
Norway's Warholm breaks 400 metres hurdles world record | Reuters
Brilliant Van Niekerk smashes 400m world record | Reuters.com
Dalilah Muhammad Breaks Her Own World Record in the 400-Meter Hurdles - The New York Times
Niekerk breaks 400m world record || Niekerk breaks 400m world record
Niekerk shatters world record in 400m to win gold : The Tribune India
400 metres - Wikipedia
N.J. Catholic high school alum breaks world record to win 400m hurdle gold - Catholic Review
Sydney McLaughlin Beat Dalilah Muhammad, Set a New World Record and Won Gold - The New York Times
Breanna Clark breaks own world record to defend 400m Paralympic title - OlympicTalk | NBC Sports
Sydney McLaughlin Breaks the 400-Meter Hurdles World Record—Again - WSJ
Wayde van Niekerk smashes Michael Johnson's record to claim 400m gold | Rio 2016 | The Guardian
Sydney McLaughlin breaks her own world record in 400m hurdles at World Athletics Championships - CBSSports.com
13-Year-Old 47s 400m WORLD RECORD! - YouTube
Wayde van Niekerk: South African smashes 400-meter world record to take gold | CNN
McLaughlin breaks own 400 meters hurdles record with 'Track Town, USA' magic | Reuters
Sydney McLaughlin Shatters 400m Hurdles World Record at 50.68 Seconds | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
We've All Been Waiting For This... || The 400 Meter World Record - YouTube
