Brilliant Van Niekerk smashes 400m world record | Reuters.com
Norway's Karsten Warholm smashes 400-meter hurdles world record to win gold - The Boston Globe
Wayde van Niekerk: Five things to know about the Olympic 400m champion and world record holder
Rio Olympics 2016: Usain Bolt proposes match race with
Wayde van Niekerk: South African smashes 400-meter world record to take gold | CNN
400 METER WORLD RECORD || WHO WILL BREAK IT? - YouTube
McLaughlin breaks own 400 meters hurdles record with 'Track Town, USA' magic | Reuters
400 metres - Wikipedia
Sydney McLaughlin Breaks the 400-Meter Hurdles World Record—Again - WSJ
Dalilah Muhammad Breaks Her Own World Record in the 400-Meter Hurdles - The New York Times
The men's 400 world record moves rarely, but it does move dramatically
Niekerk breaks 400m world record || Niekerk breaks 400m world record
Sydney McLaughlin wins gold with world record in 400 hurdles - Los Angeles Times
Women's 400m World Record is 48.25 – Žiga P. Škraba
N.J. Catholic high school alum breaks world record to win 400m hurdle gold - Catholic Review
Men's 400m world record holder Van Niekerk tests positive for coronavirus
Breanna Clark breaks own world record to defend 400m Paralympic title - OlympicTalk | NBC Sports
Sydney McLaughlin Breaks Her Own 400-Meter Hurdles World Record - The Seattle Medium
Wayde van Niekerk to miss world championships - OlympicTalk | NBC Sports
We've All Been Waiting For This... || The 400 Meter 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
Sydney McLaughlin Beat Dalilah Muhammad, Set a New World Record and Won Gold - The New York Times
