| 2013 Results | |||
| Qatar Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Philipp Kohlschreiber | L | 6-7(5-7), 1-6 |
| Australian Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Di Wu | W | 7-5, 4-6, 6-3, 6-3 |
| 2 | Jarkko Nieminen | W | 6-3, 6-7(3-7), 6-3, 6-7(4-7), 6-1 |
| 3 | Richard Gasquet | L | 6-4, 3-6, 6-7(2-7), 0-6 |
| Zagreb Indoors | |||
| Rd | Opponent | W/L | Score |
| 1 | Benjamin Becker | W | 6-2, 7-6(7-3) |
| 2 | Ivo Karlovic | W | 7-6(7-2), 6-7(2-7), 6-3 |
| QF | Mikhail Youzhny | L | 3-6, 2-6 |
| U.S. National Indoor Tennis Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Marin Cilic | L | 6-4, 2-6, 3-6 |
| Delray Beach International Tennis Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Alexandr Dolgopolov | W | 6-3, 6-3 |
| 2 | Evgeny Donskoy | W | 6-3, 7-5 |
| QF | Tommy Haas | L | 6-7(6-8), 6-2, 1-6 |
| BNP Paribas Open | |||
| Rd | Opponent | W/L | Score |
| 2 | Julien Benneteau | W | 6-4, 6-2 |
| 3 | Roger Federer | L | 3-6, 1-6 |
| Miami Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | Lukas Lacko | ||
| Tennis Masters Monte-Carlo | |||
| Rd | Opponent | W/L | Score |
| 1 | Benoit Paire | ||
| Open Banco Sabadell | |||
| Rd | Opponent | W/L | Score |
| 1 | Aljaz Bedene | W | 6-7(6-8), 6-3, 6-2 |
| 2 | Nicolas Almagro | L | 1-6, 5-7 |
| BMW Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Nikolay Davydenko | W | 6-4, 6-4 |
| 2 | Marin Cilic | W | 6-4, 6-2 |
| QF | Alexandr Dolgopolov | W | 6-4, 6-4 |
| SF | Tommy Haas | L | 4-6, 3-6 |
| Power Horse Cup | |||
| Rd | Opponent | W/L | Score |
| 1 | Blaz Kavcic | W | 7-5, 6-4 |
