Bol breaks world indoor 400m record with 49.26 in Apeldoorn | REPORT | World Athletics
43.03 – The Fastest 400m in History – Žiga P. Škraba
Sydney McLaughlin breaks her own 400-meter hurdles world record - KESQ
Tokyo Olympics: Norway's Karsten Warholm smashes world record in race for the ages to win 400m hurdle race - India Today
400 Metres
Wayde van Niekerk: Five things to know about the Olympic 400m champion and world record holder
Sydney McLaughlin-Levrone takes world lead in 400 meters
McLaughlin smashes her own world record to win epic women's 400m hurdles final
Van Niekerk COVID-19 test a "false positive", according to manager
Wayde van Niekerk: The race for my 400m world record
Karsten Warholm Sets World Record in 400-Meter Hurdles - The New York Times
Wayde van Niekerk smashes Michael Johnson's record to claim 400m gold | Rio 2016 | The Guardian
How van Niekerk broke the 400m world record
Van Niekerk smashes world record to grab Olympic 400m glory - Olympic News
4 × 400 metres relay - Wikipedia
Sydney McLaughlin Beat Dalilah Muhammad, Set a New World Record and Won Gold - The New York Times
400 METER WORLD RECORD || WHO WILL BREAK IT?
Sydney McLaughlin Breaks The World Record in the 400m Hurdles - Women's Running
400 metres - Wikipedia
Niekerk breaks 400m world record
Karsten Warholm smashes 400m hurdles world record in one of greatest races in history | Tokyo Olympic Games 2020 | The Guardian
Wayde van Niekerk: South African smashes 400-meter world record to take gold | CNN
Femke Bol smashes athletics' oldest world record. What could be next?
Two Americans Broke the World Record in the 400 Hurdles. Only One Could Win Gold. - WSJ
