Combo picture shows tennis Roger Federer of Switzerland holding up his 16 Grand Slam titles. Swiss great Roger Federer won his fourth Australian Open and 16th Grand Slam title on January 31, 2010 in Melbourne. Federer's 16 Grand Slam victories are: Australian Open 2004, 2006, 2007, 2010, Wimbledon 2003, 2004, 2005, 2006, 2007, 2009, French Open 2009, US Open 2004, 2005, 2006, 2007, 2008.