Formula 1 World Championship leader Jenson Button recorded a personal best at the London triathlon on Sunday.
The 29-year-old Briton set a time of two hours, seven minutes and two seconds over the Olympic distance, which included a 1.5-km swim, 40km on a bike, and 10km running.
"I had to wake up at 4 a.m. to get here this morning and I loved it – it has been my best ever Sunday morning," said Button. "I enjoyed it today – it's such an amazing event, it's so big and it's great that triathlon is doing so well in the UK. I hope that its growth continues."
Button was joined by 125cc rider Bradley Smith, who finished some six minutes behind the Formula 1 driver.
"He did very well, he's a fit lad and so am I and it's great to show that at events like this," Smith said of Button. "Our performance demonstrates that we do have to train hard to be an F1 driver or a MotoGP rider and that when we aren't racing, we aren't just at home sitting around and that we do have to be very fit in order to race at the level we do."
Over £3 million ($5m) was raised for charity in the event, in which nearly 10,000 people took place.