Record-holder Van Niekerk eases through 400m heat, U.S. trio advance | Reuters
Niekerk breaks 400m world record || Niekerk breaks 400m world record
Fastest since 1985, Naser wins women's world 400-meter
/cloudfront-us-east-1.images.arcpublishing.com/pmn/GNGJK66BR5HZDIWARO2KZC5IT4.jpg "Tokyo Olympics: Sydney McLaughlin 400m hurdles gold is world record in track & field")
Tokyo Olympics: Sydney McLaughlin 400m hurdles gold is world record in track & field
Karsten Warholm Sets World Record in 400-Meter Hurdles - The New York Times
400 metres - Wikipedia
Dutch Woman Smashes a World Record Unbroken For 41 Years–While Her Home Audience Cheers
Fastest since 1985, Naser wins women's world 400-meter
Femke Bol breaks 41-year world record in the women's indoor 400 meters | CNN
43.03 – The Fastest 400m in History – Žiga P. Škraba
Men's 400 Meters: South African Wayde van Niekerk Shatters World Record | Runner's World
McLaughlin breaks own 400 meters hurdles record with 'Track Town, USA' magic | Reuters
McLaughlin smashes her own world record to win epic women's 400m hurdles final
Who is Wayde van Niekerk, South Africa's Record-Breaking 400m Champion?
Van Niekerk betters 400m world record
Fastest 400-Meter Dash While Wearing Crocs: Niklas Klei Sets World Record
2021 Tokyo Olympics - Women's 400 Meters Results
Wayde van Niekerk sets a 400-meter record that no one saw coming - The Washington Post
Bol finds 400m record in her dream world | FEATURE | World Athletics
400 metres at the Olympics - Wikipedia
