Roger Federer's first serve is a big key to his success at the French Open, as demonstrated by his fourth round victory over Gael Monfils. In the three sets he won, Federer hit 67% of his first serves in play, won 83% of his first serve points and held 13 of 13 service games. In the set he lost, Federer hit 47% of his first serves in play, won 43% of his first serve points and held just three of five service games.
Check SI.com's French Open data hub page throughout the whole tournament for the latest data-driven infographics and charts from IBM, the official technology partner for the French Open. IBM captures and analyzes the data that powers all of the Grand Slams, as well as the digital platforms that extend the experience to fans around the world.