1 / 10
Caroline Wozniacki competed in the New York City Marathon just a week after finishing the tennis season in 2014.
2 / 10
Five-time gold medal rower at the Olympic Games, Steve Redgrave, completed his epic run in London.
3 / 10
Former England striker Michael Owen participated at the 2014 London Marathon.
4 / 10
15-time NHL All Star, Mark Messier, ran the 2011 NYC Marathon and raised money for two different charities in the process.
5 / 10
Rowing champion James Cracknell ran the 2006 London Marathon in under three hours.
6 / 10
Former Manchester United star Dwight Yorke celebrates as he completes the 2011 London Marathon.
7 / 10
Czech Republic's iconic football star Pavel Nedved ran the 2012 Prague Marathon.
8 / 10
Andrew Strauss ran the 2013 London Marathon in honor of the people affected by the Boston Marathon incident.
9 / 10
Former Aston Villa and England star Lee Hendrie ran the London Marathon in 2015.
10 / 10
Formula One star Jenson Button completed the feat last year.