Frenchman the Bosse in 800 metres

Pierre-Ambroise Bosse of France won the men's 800 metres world title on Tuesday in sensational style.

Pierre-Ambroise Bosse produced a stunning burst with 150m to go, passing Kipyegon Bett and race favourite Nijel Amos of Botswana.   -  Getty Images

Pierre-Ambroise Bosse was such a surprise winner of the 800 metres at the World Championships on Tuesday that the Frenchman could hardly credit it himself.

The 25-year-old reckoned he had risked everything by making his move down the back straight.

“I'm a gambler, I love going to the casino and today I just gambled, I put everything on the red, even my last Euro,” he told reporters.

Showing considerable resolve on the run-in, he proved too strong for the favourites - and hit his jackpot.

“Trust me. I live my dream. Or am I dreaming? I still can't believe it,” the incredulous Bosse told the fans in the London Stadium after he held off fast-finishing silver medallist, Pole Adam Kszczot, for the first major gold of his career.

Teenage Kenyan Kipyegon Bett, who had made the initial move to break the field down the back straight on the second lap, just about held on to bronze after a tremendous late dash from Briton Kyle Langford.

The Frenchman held firm to win in a season's best 1 minute 44.67 seconds to Kszczot's 1:44.95 as the Pole, even with his familiar late charge, had to settle for the silver just as he had done in the last world championships in Beijing two years ago.

Bett clocked 1:45.21 with 21-year-old Langford setting a lifetime best 1:45.25.

Bosse, whose name has an acute accent at the end, always insists on people calling him “Boss” rather than “Boss-ay". Now it was evident why as he quite bossed the race over the last 250 metres.

In the same stadium where David Rudisha had run the race of the 2012 Olympics, breaking the world record with an astonishing 1:40.91 tour de force, this was an event hardly to be talked about in the same breath.