Jenson Button: Marathoning
Formula One drivers compete in 19 races on five continents during their seasons, and don't seem to take the weekend off. McLaren driver Jenson Button expels his extra adrenaline running marathons all over the world. In April, he set his personal record of 2:52:30 at the 2015 London Marathon between F1 stops in Bahrain and Spain. Button has put in nearly 700 miles of training (and counting) so far this year. Often called the fittest man in F1, he's not bad on the track either, having won 15 career races.