It's no secret—No. 1 Serena Williams will try for the first calendar Grand Slam since Steffi Graf completing the feat in 1988. But what does it really take to accomplish tennis's elusive Grand Slam? Take a look at Serena's stats and tournament breakdown from the last four majors, including the 2014 U.S. Open and 2015 Australian Open, French Open and Wimbledon. Her record, tournament averages for aces, service games, winners, net approaches and more detail what exactly it takes to win four consecutive major titles.
Check SI.com's 2015 U.S. Open data hub page throughout the whole tournament for the latest data-driven infographics and charts from IBM, the official technology partner for the U.S. 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.