| 2003 Results | |||
| Tata Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Karol Kucera | L | 6-3, 6-7 (3-7), 3-6 |
| Australian Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Younes El Aynaoui | L | 6-2, 6-4, 4-6, 0-1, retired |
| Siebel Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Paradorn Srichaphan | W | 7-5, 6-2 |
| 2 | Zack Fleishman | W | 6-1, 6-4 |
| QF | Kenneth Carlsen | W | 6-3, 6-4 |
| SF | Davide Sanguinetti | L | 4-6, 7-6 (7-2), 3-6 |
| Kroger St. Jude | |||
| Rd | Opponent | W/L | Score |
| 1 | Hyung-Taik Lee | L | 3-6, 4-6 |
| Copenhagen Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Karol Beck | L | 4-6, 3-6 |
| International Tennis Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Alex Bogomolov Jr. | W | 6-4, 6-0 |
| 2 | Jan-Michael Gambill | L | 5-7, 5-7 |
| U.S. Men's Clay Court Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Fernando Meligeni | L | 2-6, 4-6 |
| French Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Mariano Puerta | L | 2-6, 6-4, 6-7 (1-7), 1-6 |
| The Stella Artois Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Ivo Karlovic | L | 6-7 (4-7), 6-4, 6-7 (3-7) |
| The Samsung Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Vladimir Voltchkov | L | 1-6, 5-7 |
| The Wimbledon Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Irakli Labadze | W | 6-2, 6-2, 6-4 |
| 2 | Arnaud Clement | W | 2-6, 6-3, 6-4, 6-7 (2-7), 6-1 |
| 3 | Jonas Bjorkman | L | 1-6, 3-6, 3-6 |
| Miller Lite Hall of Fame Tennis Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Jeff Morrison | W | 6-4, 4-6, 7-6 (15-13) |
| 2 | Zack Fleishman | W | 1-6, 6-3, 6-3 |
| QF | Gregory Carraz | L | 6-2, 1-6, 6-7 (3-7) |
| RCA Championships | |||
| Rd | Opponent | W/L | Score |
| 2 | Alex Bogomolov Jr. | L | 2-6, 4-6 |
| Mercedes-Benz Cup | |||
| Rd | Opponent | W/L | Score |
| 1 | Vincent Spadea | L | 4-6, 3-6 |
| U.S. Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Dominik Hrbaty | L | 3-6, 4-6, 2-6 |
| Heineken Open Shanghai | |||
| Rd | Opponent | W/L | Score |
| 1 | Alexander Waske | W | 6-3, 7-6 (7-4) |
| 2 | Robin Soderling | L | 4-6, 4-6 |
| Japan Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Cyril Saulnier | L | 6-7 (5-7), 6-3, 1-6 |
