Tennis players are constantly moving—back and forth, side to side—throughout a match. By the end, a singles player can tally up several miles.
At the 2014 US Open, singles players ran anywhere from a 5K up to a 15K, according to the IBM Slam Tracker, which gathers data of ball and player movement. IBM used information captured by high-speed cameras that were set up on courts for electronic line-calling and then extracted and correlated it with statistical data to provide insight on players.
See how many miles the US Open's final four tennis players logged during the Grand Slam event.
More: How Long is a 5K?
Sign up for your tennis event.