Wayde van Niekerk smashes Michael Johnson's 17-year-old world ...
Muhammad wins 400m hurdles gold with world record - Saudi Gazette
South Africa's Wayde van Niekerk breaks 400m world record - YouTube
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Wayde van Niekerk smashes Michael Johnson's record to claim 400m ...
Muhammad smashes 400m hurdles world record | Countryman
Michael Johnson (USA) breaking the world record (43.18) in the ...
Miller-Uibo wins 400m in record time | The Tribune
Dalilah sets new 400m hurdles world record at US C'ships - GulfToday
South African beats Michael Johnson's 17-year-old 400m world ...
Van Niekerk breaks 400m world record |Centurion Rekord
South African 400m World Record Holder Challenges Usain Bolt in ...
13-Year-Old 47s 400m WORLD RECORD! - YouTube
Wayde van Niekerk breaks 400m world record | NBC Olympics
Muhammad breaks world record in 400m hurdles at nationals
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Michael Johnson Sevilla 1999: Men's 400m world record - YouTube
Relive every world record from the 2016 Olympics | NBC Olympics
American Muhammad breaks own world record to win 400m hurdles
Mohammad Anas smashes 400m national record to qualify for World ...
Wayde van Niekerk Runs 43.03, Breaks 400m World Record!
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Wayde van Niekerk breaks world record to win 400m gold in Rio ...
