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 '
McLaren driver Jenson Button ran the London Marathon 2015 . He finished with a time of under three hours . Button praised the 'amazing atmosphere ' and collective spirit of the runners at the event .