400 Metres
20 year-old Sydney McLaughlin wins the 400m hurdles final in ...
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List of Olympic records in athletics - Wikipedia
/GettyImages-122380013-5b4c5f9946e0fb005bd36fc9.jpg "Men's 5000-Meter World Records, Recognized by the IAAF")
Men's 5000-Meter World Records, Recognized by the IAAF
400 metres at the Olympics - Wikipedia
U.S. women win 400-meter relay in world record time - Los Angeles ...
Sifan Hassan breaks women's mile World Record in 4:12.33 | NBC Sports
The Economist explains - Why the women's 800m will be the most ...
Marita Koch: Can we believe her 400m world record is genuine ...
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Olympic sprinter Allyson Felix breaks Usain Bolt's world record ...
List of world records in athletics - Wikipedia
Erasing world records set before 2005 a cynical PR charade | Daily ...
Dalilah Muhammad breaks women's world record in 400 hurdles at ...
Michael Johnson Sevilla 1999: Men's 400m world record - YouTube
Dalilah Muhammad Breaks 16-Year-Old World Record in 400-Meter ...
Dalilah Muhammad Breaks Own 400 Hurdles World Record With Sydney ...
Dalilah Muhammad Breaks Her Own World Record in the 400-Meter ...
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American runner Dalilah Muhammad sets world record in 400 meter ...
Salwa Eid Naser - Wikipedia
Marita Koch Women's 400m World Record - YouTube
400 metres - Wikipedia
Track's Most Resilient (and Suspect) Record Is in Danger - The New ...
