Jamaican Usain Bolt outstripped American rival Justin Gatlin to win his fourth consecutive world 200m title on Thursday to add to the 100m gold he won at the weekend.

Bolt clocked 19.55 seconds to extend his domination of global sprinting since taking the world by storm at the 2008 Beijing Olympics at the same Bird's Nest stadium.

Gatlin, who has served two doping bans, clocked 19.74sec, with South African Anaso Jobodwana taking bronze with a national record of 19.87sec.

The victory meant Bolt has now remarkably won 11 of the last 12 individual Olympic and world sprint titles since shooting to fame at the Beijing Games, his only blip coming after a false start in the 100m at the 2011 worlds in Daegu.