Rio Highlights: Usain Bolt Defends Crown; S. African Sets World 400 Record | WBEZ Chicago
Bolt, Jamaica smash world record in 400 relay – The Mercury News
Bolt eyes Johnson's 400m record
Usain Bolt's Split Times and the Power of Calculus | Quanta Magazine
Bolt steals the show; Van Niekerk sets the record - Los Angeles Times
Usain Bolt ready to return to New York, scene of first 100 metre world record | Athletics News | ESPN.co.uk
BBC Sport - Athletics - Usain Bolt puts 400m mission on hold until after 2012
Usain Bolt delays plans to take on Michael Johnson's 400m world record | Usain Bolt | The Guardian
Bolt, Jamaica set new world record in 4 x 100
Rio Olympics 2016: Usain Bolt proposes match race with
Bolt Needs Little Urging to Crush His 200 World Record - The New York Times
Usain Bolt record collection: the sprint king's greatest hits
Usain Bolt: 400m (45.35) 2003 - YouTube
![Watch Wayde's World Record 400m Race – And Usain Bolt's Face When He Saw That Time [Videos] – 2oceansvibe News | South African and international news](https://media.2oceansvibe.com/wp-content/uploads/2016/08/wayyyyyde.jpg "Watch Wayde's World Record 400m Race – And Usain Bolt's Face When He Saw That Time [Videos] – 2oceansvibe News | South African and international news")
Watch Wayde's World Record 400m Race – And Usain Bolt's Face When He Saw That Time [Videos] – 2oceansvibe News | South African and international news
Will lightning Bolt strike thrice? Usain lining up Johnson's 400m world record | Daily Mail Online
Wayde van Niekerk: South African smashes 400-meter world record to take gold | CNN
Christopher Taylor breaks Usain Bolt's 400M record at World Youth Championships 2015, Cali (COL) - YouTube
/origin-imgresizer.eurosport.com/2008/11/28/483566-23008722-2560-1440.jpg "Bolt could go for 400m - Eurosport")
Bolt could go for 400m - Eurosport
Allyson Felix breaks Usain Bolt record for world titles, gets first gold as a mom - OlympicTalk | NBC Sports
Michael Johnson challenges Usain Bolt to break 400m record | Usain Bolt | The Guardian
Usain Bolt makes an appearance in 400m race
Olympics 2021: Teen freak breaks second Usain Bolt record
Wayde van Niekerk sets new 400m world record and it's gold for Usain Bolt and Andy Murray - What you missed last night at Rio 2016
Bolt legs out Jamaican win in 400 relay
