Norway's Warholm breaks 29-year-old 400m hurdles world record - CGTN
43.03 – The Fastest 400m in History – Žiga P. Škraba
The World's Fastest (Old) Man - The New York Times
Sydney McLaughlin breaks her own 400-meter hurdles world record | CNN
How van Niekerk broke the 400m world record
Track & Field Worlds 2022: Wayde van Niekerk, Kirani James and Michael Norman chasing 400m gold: Preview, schedule & how to watch
Athletics-Dutch runner Bol smashes her own indoor 400m world record | SaltWire
Wayde van Niekerk smashes Michael Johnson's record to claim 400m gold | Rio 2016 | The Guardian
Wayde van Niekerk - Wikipedia
Has any Olympic runner ever medaled in the 100m/200m/and 400 m? - Quora
Mohammad Anas smashes 400m national record to qualify for World Championships | More sports News - Times of India
Van Niekerk betters 400m world record
South African beats Michael Johnson's 17-year-old 400m world record for gold – The Denver Post
Record-holder Van Niekerk eases through 400m heat, U.S. trio advance | Reuters
Michael Johnson Sevilla 1999: Men's 400m world record - YouTube
Rai Benjamin Shocked by Hurdle Record, 2nd Place to Karsten Warholm
400 Metres
The men's 400 world record moves rarely, but it does move dramatically
/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
Dutch runner Bol breaks 400m indoor world record
We've All Been Waiting For This... || The 400 Meter World Record - YouTube
Van Niekerk fails to roll back the years with last-place finish at World Champs 400m final | Sport
Dutch runner Femke Bol breaks own 400m indoor world record
Men's 400 Meters: South African Wayde van Niekerk Shatters World Record | Runner's World
