Usain Bolt wins his fourth consecutive world 200m title

Jamaica's Usain Bolt easily outstripped American rival Justin Gatlin to claim his fourth consecutive world 200m title on Thursday and complete a rousing sprint double in Beijing.

Bolt clocked a world-leading 19.55 seconds to beat Gatlin by nearly two-tenths, thumbing his chest as he crossed the line to add the 200m to his 100m title at the world  championships.

The clear victory extends Bolt's domination of sprinting which stretches back to when he took the world by storm at the 2008 Beijing Olympics, also at the Bird's Nest stadium.

Gatlin, who has served two doping bans and finished just one-hundredth of a second behind Bolt in Sunday's 100m, clocked 19.74sec, with South African Anaso Jobodwana taking bronze with a national record of 19.87sec.