Bolt, who set the year’s best time of 19.67 two weeks ago, broke the UK All Comers record of 19.84 held by American world champion Tyson Gay, who would be one of Bolt’s main rivals if the Jamaican decides to run in the 100 at the Beijing Games.

“It was pretty good…I came out here with a plan and I did execute it well,” the 21-year-old said.

Bolt, who could compete for a 100-200 sprint double at next month’s Games, said: “I’m still not sure about doubling in Beijing. My coach will make the decision.

“I’d definitely like to double, I think I could do well in both. But my coach hasn’t made a bad decision in five years so if he says I can only do one, I’ll do one.”