Report: men's 400m final – Rio 2016 Olympic Games| News
Wayde van Niekerk's 'massacre'; Britain's golden day: Olympics roundup - The National
SportsCenter on Twitter | Allyson felix, Track and field athlete, Olympic medals
Athletics at the 2016 Summer Olympics – Women's 400 metres hurdles - Wikipedia
400 metres at the Olympics - Wikipedia
2008 Olympic Champion LaShawn Merritt Returns To 400-Meter Podium, Earns Bronze
![Kirani James [GRN] - Men's 400m | Champions of London 2012 - YouTube](https://i.ytimg.com/vi/_h7gFkvHqTU/maxresdefault.jpg "Kirani James [GRN] - Men's 400m | Champions of London 2012 - YouTube")
Kirani James [GRN] - Men's 400m | Champions of London 2012 - YouTube
Japan's 2016 Olympic Medal Winners (Photo Gallery) | Nippon.com
/cdn.vox-cdn.com/uploads/chorus_image/image/50436677/usa-today-9473048.0.jpg "Rio 2016: United States' Kerron Clement wins gold in men's 400m hurdles - SBNation.com")
Rio 2016: United States' Kerron Clement wins gold in men's 400m hurdles - SBNation.com
Olympic Swimming 2016: Women's 400M Individual Medley Medal Winners and Times | Bleacher Report | Latest News, Videos and Highlights
Watch every U.S. track and field gold medal from the 2016 Olympics | NBC Olympics
Report: men's 400m semi-finals – Rio 2016 Olympic Games| News
Wayde van Niekerk - Olympic 400m Champion | Real Life Stories
Rio 2016: Brilliant Wayde Van Niekerk smashes Michael Johnson's 400m world record - Rio Olympics 2016 (Australian Broadcasting Corporation)
Allyson Felix - Wikipedia
Rio 2016: Brilliant Wayde Van Niekerk smashes Michael Johnson's 400m world record - Rio Olympics 2016 (Australian Broadcasting Corporation)
Report: men's 400m heats – Rio 2016 Olympic Games| News
Shaunae Miller dives to beat Allyson Felix in 400m final at Rio Olympics - CNN
Olympic Track and Field 2016: Men's 400M Medal Winners, Times and Results | Bleacher Report | Latest News, Videos and Highlights
Rio Olympics 2016: drama in 400m and David Rudisha wins 800m – day 10 as it happened | Sport | The Guardian
400m women - Olympic Athletics
Olympic Track and Field 2016: Men's 1,500M Medal Winners, Times and Results | Bleacher Report | Latest News, Videos and Highlights
Rio 2016: Brilliant Wayde Van Niekerk smashes Michael Johnson's 400m world record - Rio Olympics 2016 (Australian Broadcasting Corporation)
Olympic Track and Field 2016: Women's 400M Medal Winners, Times and Results | Bleacher Report | Latest News, Videos and Highlights
Olympic champion Wayde van Niekerk tests positive for coronavirus | The Independent | The Independent
