Usain Bolt wants to bow out on a high at World Championships

Usain Bolt is set to dip at the finish line for the last time at World Championships in London, which begins today. Bolt's 100m world record set at the 2009 Berlin World Championships final. his 200m world record at the 2009 Berlin World Championships. he holds a complete set of sprint world records after Jamaica's 4x100m relay win at the 2012 London Olympics.

The number of times Bolt has set a world records.

Usain Bolt is confident he can produce a few more magical seconds when he seeks to defend his 100m title at the IAAF World Championships.

In eight individual finals at the past four worlds (as well as in four 4x100m relay finals, Bolt has only suffered one hiccup: a false start in the 100m final in Daegu in 2011.

It would be a brave person to bet against the 30-year-old Jamaican, no matter how sluggish, relatively speaking, his season has been so far.

He has had only three outings, all over 100m, and only once dipped under the 10-second barrier, in Monaco last month (9.95sec).

“If I show up at a championships, Bolt in Beijing in 2015 and Moscow two years previously, and last year became the oldest man to win a 100m Olympic medal when he took silver in Rio, also behind Bolt.

Bolt’s teammate Yohan Blake, world 100m champion in 2011 after the false start, and Gatlin’s compatriot Christian Coleman, who has the season’s fastest time of 9.82 sec, should be in the running.

Bolt’s path to victory was given a boost Wednesday when Canadian Andre De Grasse withdrew from the Worlds with a hamstring injury. De Grasse was a medal threat in the 100m and 200m.

“I’m the underdog, for some reason,” Bolt said. “That’s what I keep reading. That’s what my team keeps telling me... I’ve got to prove myself once more.