| 2013 Results | |||
| Brisbane International | |||
| Rd | Opponent | W/L | Score |
| 1 | Denis Kudla | W | 2-6, 6-4, 6-4 |
| 2 | David Goffin | W | 6-4, 7-6(7-4) |
| QF | Grigor Dimitrov | L | 3-6, 2-6 |
| Heineken Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Greg Jones | L | 6-7(7-9), 2-6 |
| Australian Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Mikhail Kukushkin | W | 6-1, 6-1, 6-2 |
| 2 | Roberto Bautista-Agut | W | 6-7(4-7), 6-3, 6-7(3-7), 6-3, 6-2 |
| 3 | Tomas Berdych | L | 3-6, 2-6, 2-6 |
| Zagreb Indoors | |||
| Rd | Opponent | W/L | Score |
| 2 | Somdev Devvarman | W | 1-6, 7-6(7-5), 6-2 |
| QF | Lukas Rosol | W | 6-4, 6-4 |
| SF | Robin Haase | W | 7-6(7-2), 6-3 |
| F | Marin Cilic | L | 3-6, 1-6 |
| U.S. National Indoor Tennis Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Igor Sijsling | L | 4-6, 6-7(3-7) |
| Abierto Mexicano Telcel | |||
| Rd | Opponent | W/L | Score |
| 1 | Joao Sousa | L | 4-6, 3-6 |
| BNP Paribas Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Mischa Zverev | L | 6-3, 3-6, 6-7(3-7) |
| Miami Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | Richard Berankis | ||
| 2 | Marcel Granollers | ||
| QF | David Ferrer | ||
| Grand Prix Hassan II | |||
| Rd | Opponent | W/L | Score |
| 1 | Tobias Kamke | ||
| Tennis Masters Monte-Carlo | |||
| Rd | Opponent | W/L | Score |
| 1 | Jesse Huta Galung | ||
| 2 | Nicolas Almagro | ||
| 3 | Jo-Wilfried Tsonga | ||
| BMW Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Gael Monfils | L | 3-6, 3-6 |
| Tennis Masters Madrid | |||
| Rd | Opponent | W/L | Score |
| 1 | Kei Nishikori | L | 3-6, 2-6 |
| Internazionali BNL d'Italia | |||
| Rd | Opponent | W/L | Score |
| 1 | Kevin Anderson | L | 1-6, 2-6 |
| Roland Garros | |||
| Rd | Opponent | W/L | Score |
| 1 | Igor Sijsling | L | 4-6, 3-6, 2-6 |
| Gerry Weber Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Riccardo Ghedin | W | 7-6(7-5), 3-6, 6-4 |
| 2 | Richard Gasquet | L | 3-6, 1-6 |
