Dutch runner Bol smashes her own indoor 400m world record | Reuters
Men's 400m world record holder Van Niekerk tests positive for coronavirus
Van Niekerk betters 400m world record
Wayde van Niekerk wins 400m heat to qualify for semi-finals at World Athletics Championships 2023
Karsten Warholm smashes 400m hurdles world record in one of greatest races in history | Tokyo Olympic Games 2020 | The Guardian
Wayde van Niekerk wins gold, sets world record in 400m - Sports Illustrated
Sydney McLaughlin-Levrone eyes Marita Koch's 400-meter world record
Michael Johnson Sevilla 1999: Men's 400m world record - YouTube
Sydney McLaughlin breaks her own 400-meter hurdles world record | CNN
Canadian teen Morales Williams unfazed by world-record nullification, has high hopes for Olympics | CBC Sports
Wayde van Niekerk smashes Michael Johnson's record to claim 400m gold | Rio 2016 | The Guardian
Van Niekerk fails to roll back the years with last-place finish at World Champs 400m final | Sport
400 metres - Wikipedia
South African beats Michael Johnson's 17-year-old 400m world record for gold – The Denver Post
Women's 400m World Record is 48.25 – Žiga P. Škraba
Norway's Warholm breaks 29-year-old 400m hurdles world record - CGTN
The World's Fastest (Old) Man - The New York Times
43.03 – The Fastest 400m in History – Žiga P. Škraba
Athletics-Dutch runner Bol smashes her own indoor 400m world record | SaltWire
Men's 400 Meters: South African Wayde van Niekerk Shatters World Record | Runner's World
/origin-imgresizer.eurosport.com/2023/08/22/3767967-76649268-2560-1440.jpg "World Athletics Championships live - Hudson-Smith breaks European record in 400m semi-final - Eurosport")
World Athletics Championships live - Hudson-Smith breaks European record in 400m semi-final - Eurosport
Wayde van Niekerk: Five things to know about the Olympic 400m champion and world record holder
400 Metres
Mohammad Anas smashes 400m national record to qualify for World Championships | More sports News - Times of India
We've All Been Waiting For This... || The 400 Meter World Record - YouTube
Record-holder Van Niekerk eases through 400m heat, U.S. trio advance | Reuters
