400 METER WORLD RECORD || WHO WILL BREAK IT? - YouTube
Femke Bol breaks 41-year world record in the women's indoor 400 meters | CNN
Wayde van Niekerk wins gold, sets world record in 400m - Sports Illustrated
Women's 400m World Record is 48.25 – Žiga P. Škraba
Mohammad Anas smashes 400m national record to qualify for World Championships | More sports News - Times of India
Fastest 400-Meter Dash While Wearing Crocs: Niklas Klei Sets World Record
Karsten Warholm Sets World Record in 400-Meter Hurdles - The New York Times
2021 Tokyo Olympics - Women's 400 Meters Results
Fastest since 1985, Naser wins women's world 400-meter
Blake Leeper breaks Oscar Pistorius' 400 metre Paralympic World record
Sydney McLaughlin sets new world record, dominates women's 400 hurdles at World Athletics Championships: Video highlights - oregonlive.com
400 metres - Wikipedia
2016 Rio Olympics -- Wayde van Niekerk of South Africa wins men's 400-meter final in world-record 43.03 seconds - ESPN
How van Niekerk broke the 400m world record
400 metres at the Olympics - Wikipedia
Wayde van Niekerk: Five things to know about the Olympic 400m champion and world record holder
Bol breaks world indoor 400m record with 49.26 in Apeldoorn | REPORT | World Athletics
/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
South Africa's Wayde van Niekerk breaks 400m world record - YouTube
Record-holder Van Niekerk eases through 400m heat, U.S. trio advance | Reuters
McLaughlin smashes her own world record to win epic women's 400m hurdles final
Niekerk breaks 400m world record || Niekerk breaks 400m world record
:format(png)/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
McLaughlin obliterates world 400m hurdles record with 50.68 in Oregon | REPORT | World Athletics
Men's 400 Meters: South African Wayde van Niekerk Shatters World Record | Runner's World
