| 2011 Results | |||
| Aircel Chennai Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Kei Nishikori | L | 6-4, 6-7, 2-6 |
| Australian Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Donald Young | W | 6-3, 6-2, 6-1 |
| 2 | Santiago Giraldo | W | 6-3, 7-6(7-1), 6-1 |
| 3 | John Isner | W | 4-6, 6-2, 6-7(5-7), 7-6(7-2), 9-7 |
| 4 | Rafael Nadal | L | 2-6, 4-6, 3-6 |
| PBZ Zagreb Indoors | |||
| Rd | Opponent | W/L | Score |
| 2 | Igor Kunitsyn | W | 7-6(7-3), 6-2 |
| QF | Florian Mayer | L | 3-6, 4-6 |
| ABN AMRO World Tennis Tournament | |||
| Rd | Opponent | W/L | Score |
| 1 | Mischa Zverev | W | 6-2, 6-4 |
| 2 | Jurgen Melzer | W | 6-2, 6-4 |
| QF | Viktor Troicki | L | 5-7, 3-6 |
| Open 13 | |||
| Rd | Opponent | W/L | Score |
| 1 | Stephane Bohli | W | 6-7(6-8), 6-3, 6-2 |
| 2 | Philipp Petzschner | W | 7-6(7-3), 6-3 |
| QF | Tomas Berdych | W | 6-3, 6-4 |
| SF | Mikhail Youzhny | W | 6-2, 1-6, 7-5 |
| F | Robin Soderling | L | 7(10)-6(8-8), 3-6, 3-6 |
| BNP Paribas Open | |||
| Rd | Opponent | W/L | Score |
| 2 | Florent Serra | W | 6-1, 6-3 |
| 3 | Stanislas Wawrinka | L | 5-7, 3-6 |
| Sony Ericsson Open | |||
| Rd | Opponent | W/L | Score |
| 2 | Janko Tipsarevic | L | 3-6, 6-7(4-7) |
| Monte-Carlo Rolex Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | Filippo Volandri | W | 6-2, 6-1 |
| 2 | Pere Riba | W | 5-2, retired |
| 3 | Roger Federer | L | 4-6, 3-6 |
| BMW Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Simone Bolelli | W | 7-5, 7-6(7-4) |
| 2 | Horacio Zeballos | W | 6-3, 7-6(8-6) |
| QF | Nikolay Davydenko | L | 5-7, 3-6 |
| Mutua Madrilena Madrid Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Potito Starace | W | 7-6(7-5), 6-4 |
| 2 | Juan Martin Del Potro | L | 3-6, 0-6 |
| Internazionali BNL d'Italia | |||
| Rd | Opponent | W/L | Score |
| 1 | Ivo Karlovic | W | 6-4, 1-0, retired |
| 2 | Carlos Berlocq | W | 6-4, 6-3 |
| 3 | Mardy Fish | W | 7-6(8-6), 6-3 |
| QF | Rafael Nadal | L | 1-6, 3-6 |
| Roland Garros | |||
| Rd | Opponent | W/L | Score |
| 1 | Ruben Ramirez Hidalgo | L | 6-7(5-7), 4-6, 4-6 |
| AEGON Championships | |||
| Rd | Opponent | W/L | Score |
| 2 | Arnaud Clement | W | 6-4, 6-4 |
| 3 | Thomaz Bellucci | W | 7-6(7-3), 0-6, 6-3 |
| QF | Andy Murray | L | , retired |
| Wimbledon | |||
| Rd | Opponent | W/L | Score |
| 1 | Ivan Ljubicic | L | 6-7(2-7), 6-3, 3-6, 4-6 |
| International German Open | |||
| Rd | Opponent | W/L | Score |
| 2 | Bastian Knittel | W | 6-3, 6-7(4-7), 6-4 |
| 3 | Tobias Kamke | W | 3-6, 6-3, 6-2 |
| QF | Mikhail Youzhny | L | 6-4, 3-6, 6-7(6-8) |
| Studena Croatia Open Umag | |||
| Rd | Opponent | W/L | Score |
| 2 | Robin Haase | W | 4-6, 6-4, 6-3 |
| QF | Andreas Seppi | W | 6-1, 6-3 |
| SF | Fabio Fognini | W | 6-2, 6-2 |
| F | Alexandr Dolgopolov | L | 4-6, 6-3, 3-6 |
| Rogers Cup | |||
| Rd | Opponent | W/L | Score |
| 1 | Andreas Seppi | W | 7-5, 6-4 |
| 3 | Novak Djokovic | L | 5-7, 2-6 |
| Western & Southern Financial Group Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | Jo-Wilfried Tsonga | L | 3-6, 4-6 |
| US Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Ryan Harrison | W | 6-2, 7-5, 7-6(8-6) |
| 2 | Bernard Tomic | W | 6-1, 6-0, 6-2 |
| 3 | Roger Federer | L | 3-6, 6-4, 4-6, 2-6 |
| China Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Di Wu | W | 6-2, 6-0 |
| 2 | Fabio Fognini | W | 6-2, 6-7(1-7), 6-3 |
| QF | Kevin Anderson | W | 7-6(7-4), 4-6, 6-1 |
| SF | Ivan Ljubicic | W | 6-4, 6-3 |
| F | Tomas Berdych | L | 6-3, 4-6, 1-6 |
| Shanghai Rolex Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | Albert Ramos | L | 3-6, 4-6 |
| St. Petersburg Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Sergei Bubka | W | 6-4, 7-6(7-1) |
| 2 | Somdev Devvarman | W | 5-7, 6-1, 6-3 |
| QF | Andreas Seppi | W | 4-6, 7(10)-6, 6-4 |
| SF | Mikhail Youzhny | W | 6-3, 6-4 |
| F | Janko Tipsarevic | W | 6-3, 3-6, 6-2 |
| Valencia Open 500 | |||
| Rd | Opponent | W/L | Score |
| 1 | Milos Raonic | W | 6-4, 6-4 |
| 2 | Marcel Granollers | L | 6-3, 3-6, 5-7 |
| BNP Paribas Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | Fernando Verdasco | L | 6-3, 2-6, 3-6 |