American Muhammad breaks own world record to win 400m hurdles
Wayde van Niekerk breaks 400m world record | NBC Olympics
Wayde van Niekerk smashes Michael Johnson's record to claim 400m ...
USA student Norman breaks indoor 400m world record - Daily Times
Van Niekerk smashes 400m World Record to claim Olympic title
Muhammad wins 400m hurdles gold with world record - Saudi Gazette
South Africa's Wayde van Niekerk breaks 400m world record - YouTube
Michael Johnson (USA) breaking the world record (43.18) in the ...
Van Niekerk thought 400m record impossible without drugs
Wayde van Niekerk Runs 43.03, Breaks 400m World Record!
Michael Johnson Sevilla 1999: Men's 400m world record - YouTube
Dalilah sets new 400m hurdles world record at US C'ships - GulfToday
Van Niekerk World record holder ready for 400m dash return in ...
Wayde van Niekerk breaks world record to win 400m gold in Rio ...
Women set new 4 x 400m Record and Nikki seventh - Scottish Athletics
13-Year-Old 47s 400m WORLD RECORD! - YouTube
Relive every world record from the 2016 Olympics | NBC Olympics
SA Athlete, World Record Holder, Semanya Wins 400m Women's Final ...
Wayde van Niekerk sets new 400m world record and it's gold for ...
Wayde van Niekerk breaks world 400m record for Olympic gold - AW
World Championships: American Muhammad breaks own world record to ...
Niekerk shatters world record in 400m to win gold
Wayde van Niekerk smashes Michael Johnson's 17-year-old world ...
South African beats Michael Johnson's 17-year-old 400m world ...
Record du monde du 400 mètres — Wikipédia
Van Niekerk breaks 400m world record |Centurion Rekord
