| 2003 Results | |||
| AAPT | |||
| Rd | Opponent | W/L | Score |
| 1 | Franco Squillari | W | 7-6 (7-4), 6-2 |
| 2 | Richard Krajicek | L | 4-6, 3-6 |
| adidas International | |||
| Rd | Opponent | W/L | Score |
| 1 | Thomas Enqvist | W | 6-2, 6-4 |
| 2 | Juan Ignacio Chela | W | 6-7 (5-7), 6-4, 6-4 |
| QF | Franco Squillari | W | 6-0, 6-4 |
| SF | Hyung-Taik Lee | L | 3-6, 3-6 |
| Australian Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Tommy Robredo | W | 5-7, 6-0, 6-3, 6-4 |
| 2 | Michel Kratochvil | W | 6-2, 6-2, 7-5 |
| 3 | Mardy Fish | W | 2-6, 3-6, 6-1, 6-4, 6-0 |
| 4 | Sargis Sargsian | W | 6-3, 6-4, 3-6, 6-3 |
| QF | Juan Carlos Ferrero | W | 7-6 (7-4), 7-6 (7-5), 6-1 |
| SF | Andre Agassi | L | 2-6, 2-6, 3-6 |
| Kroger St. Jude | |||
| Rd | Opponent | W/L | Score |
| 1 | Jeff Morrison | L | 5-7, 4-6 |
| Franklin Templeton Tennis Classic | |||
| Rd | Opponent | W/L | Score |
| 1 | Wayne Arthurs | W | 7-5, 6-7 (5-7), 6-2 |
| 2 | Lleyton Hewitt | L | 5-7, 1-6 |
| Pacific Life Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Max Mirnyi | L | 6-7 (5-7), 3-6 |
| NASDAQ-100 Open | |||
| Rd | Opponent | W/L | Score |
| 2 | Felix Mantilla | W | 6-4, 6-1 |
| 3 | Nicolas Lapentti | L | 4-6, 2-6 |
| Tennis Masters Monte Carlo | |||
| Rd | Opponent | W/L | Score |
| 1 | Jonas Bjorkman | W | 6-4, 2-6, 7-5 |
| 2 | Carlos Moya | L | 4-6, 4-6 |
| Italia Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | Feliciano Lopez | W | 3-6, 6-4, 6-3 |
| 2 | Rainer Schuettler | L | 6-7 (4-7), 2-6 |
| Tennis Masters Hamburg | |||
| Rd | Opponent | W/L | Score |
| 1 | Alexander Waske | W | 6-3, 6-2 |
| 2 | Feliciano Lopez | W | 6-1, 6-2 |
| 3 | Gustavo Kuerten | W | 7-6 (7-4), 6-4 |
| QF | Agustin Calleri | L | 5-7, 2-6 |
| French Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Tomas Behrend | W | 6-4, 6-2, 6-3 |
| 2 | David Ferrer | W | 4-6, 6-4, 6-1, 6-3 |
| 3 | Rainer Schuettler | L | 3-6, 6-1, 6-7 (3-7), 3-2 |
| The Wimbledon Championships | |||
| Rd | Opponent | W/L | Score |
| 1 | Karol Kucera | L | 1-6, 2-6, 4-6 |
| Mercedes-Benz Cup | |||
| Rd | Opponent | W/L | Score |
| 1 | Robert Yim | W | 6-4, 6-4 |
| 2 | Alex Bogomolov Jr. | W | 7-6 (7-1), 6-3 |
| QF | Sebastien Grosjean | W | 7-6 (7-4), 6-7 (4-7), 6-2 |
| SF | Mark Philippoussis | W | 6-4, 7-5 |
| F | Lleyton Hewitt | W | 6-3, 4-6, 7-5 |
| Tennis Masters Canada | |||
| Rd | Opponent | W/L | Score |
| 1 | Wayne Black | L | 4-6, 1-2, retired |
| Western & Southern Financial Group Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | James Blake | L | 1-6, 6-7 (0-7) |
| U.S. Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Ivan Miranda | W | 6-4, 6-3, 6-1 |
| 2 | Robby Ginepri | L | 2-6, 4-6, 7-6 (7-0), 2-6 |
| Grand Prix de Tennis de Lyon | |||
| Rd | Opponent | W/L | Score |
| 1 | Thomas Enqvist | L | 6-7 (7-9), 6-7 (5-7) |
| Tennis Masters Madrid | |||
| Rd | Opponent | W/L | Score |
| 1 | Ivan Ljubicic | W | 7-6 (7-0), 7-6 (7-5) |
| 2 | Juan Carlos Ferrero | L | 3-6, 6-2, 6-7 (4-7) |
| Stockholm Open | |||
| Rd | Opponent | W/L | Score |
| 1 | Juan Ignacio Chela | L | 4-6, 2-6 |
| BNP Paribas Masters | |||
| Rd | Opponent | W/L | Score |
| 1 | Victor Hanescu | L | 6-2, 4-6, 3-6 |
