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Usain Bolt

Jamaica's Usain Bolt wins the 100 metres final at the 2013 IAAF World Championships at the Luzhniki stadium in Moscow on August 11, 2013. Bolt timed a season's best 9.77 seconds, with American Justin Gatlin claiming silver in 9.85sec and Nesta Carter, also of Jamaica, taking bronze in 9.95sec. TOPSHOTS / AFP PHOTO / OLIVIER MORIN

Usain Bolt reclaims world title in style

Usain Bolt regained his world 100 metres crown and restored some

credibility to a sport tarnished by a plethora of doping scandals as he

scorched to gold in 9.77 seconds at Moscow's Luzhniki Stadium on August

11, 2013.

Fast-starting American Justin Gatlin took silver in 9.85 with Jamaican Nesta Carter securing bronze in 9.95.

Disqualified

from the 2011 final for false-starting, Bolt made no mistake out of the

blocks this time and although trailing Gatlin, directly to his left, at

halfway, he surged to the front at 60 metres.