Multiple choice general knowledge sports How many Grandslam "Pete Sampras" had won 14 12 13 11 Reveal answer Fill a bubble to check yourself A Correct answer Explanation Pete Sampras won 14 Grand Slam singles titles between 1990 and 2002. This record stood until Roger Federer and later Novak Djokovic surpassed it. His wins came at the Australian Open (2), French Open (0), Wimbledon (7), and US Open (5).