No. 49 to No. 9
Tipsarevic had spent the better part of four years as a top-50 player, but he finally broke into the ATP's upper echelon in 2011. He saved the best for last this season, making his first Grand Slam quarterfinal at the U.S. Open, winning the Malaysian Open and the Kremlin Cup in October and making his first Tour Finals in November after Andy Murray pulled out.