text: Formula One star Jenson Button completed the London Marathon with an impressive time of two hours, 52 minutes and 30 seconds. The 35-year-old McLaren driver told the BBC he was 'chuffed to bits' with his performance, but joked he was disappointed to finish behind former Olympic rower James Cracknell. He added, 'There was such an amazing atmosphere out there.' Formula One driver Jenson Button celebrates completing the London Marathon 2015 in under three hours . Button praised the 'amazing atmosphere' and collective spirit of the runners at the event . Button was running on behalf of the charity Cancer Research and was really buoyed by the good will feelings about the event. 'People have put in so much effort and it's actually quite emotional it was really cool,' he said, before praising the collective spirit of the runners. 'To come here and do a completely different sport with 36,000 other people... it's really really emotional.' Button was running on behalf of Cancer Research and described his experience as 'really really emotional'
target: McLaren driver Jenson Button ran the London Marathon 2015 .
  He finished with a time of 2 hours 52 minutes and 30 seconds .
  Button praised the 'amazing atmosphere' and collective spirit of the runners at the event .