Allyson Felix breaks Usain Bolt record for world titles, gets first gold as a mom - OlympicTalk | NBC Sports
Usain Bolt Moscou 37.36s 400m (4 x 100) Final - 18/08/2013 - YouTube
Usain Bolt delays plans to take on Michael Johnson's 400m world record | Usain Bolt | The Guardian
Despite the rain, Bolt blasts 19.59sec in Lausanne – IAAF World Athletics Tour | NEWS | World Athletics
Usain Bolt targets Michael Johnson's 400m record
Usain Bolt: 400m (45.35) 2003 - YouTube
Usain Bolt aims to break own 200m world record at Rio Olympics | Olympics News | Sky Sports
BBC Sport - Athletics - Usain Bolt puts 400m mission on hold until after 2012
Bolt - 100, 200 . . . 400m? | NEWS | World Athletics
Bolt cruises to world record in 100-meters
Bolt Needs Little Urging to Crush His 200 World Record - The New York Times
Will lightning Bolt strike thrice? Usain lining up Johnson's 400m world record | Daily Mail Online
Christopher Taylor breaks Usain Bolt's 400M record at World Youth Championships 2015, Cali (COL) - YouTube
Bolting to The Bank?
Usain Bolt aurait-il pu battre le record du monde du 400m ? – Anec'Sport
Usain Bolt makes an appearance in 400m race
Rio Olympics 2016: Usain Bolt proposes match race with
Could Usain Bolt break the 400 meter world record? | Sporting 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](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
Bolt eyes Johnson's 400m record
Karsten Warholm obliterates 400m hurdles world record - 'Up there with Usain Bolt' | Other | Sport | Express.co.uk
/https://www.therecord.com/content/dam/therecord/sports/2011/08/30/the-next-usain-bolt-teen-from-grenada-wins-400-metres/e22e1bf1404aafaa5366cc22872e_Gallery.jpeg "The next Usain Bolt? Teen from Grenada wins 400 metres | TheRecord.com")
The next Usain Bolt? Teen from Grenada wins 400 metres | TheRecord.com
Usain Bolt's Split Times and the Power of Calculus | Quanta Magazine
/https://www.thestar.com/content/dam/thestar/sports/2009/08/23/usain_bolt_wins_gold_minus_glitter/bolt_wins_gold_minusglitter.jpeg "Usain Bolt wins gold, minus glitter | The Star")
Usain Bolt wins gold, minus glitter | The Star
Wayde van Niekerk reveals how Usain Bolt helped inspire him to break Michael Johnson's 17-year world record | The Sun
