| 2003-09-29 | Tokyo | Hard | R16 | 11 |  Paradorn Srichaphan (3) | 204 |  Takao Suzuki (WC) | 6-2 7-6(3) | H2H | 3 | 103 | 6 | 2 | 50.0% | 80.0% | 62.9% | 4/4 |
| 2003-09-29 | Tokyo | Hard | R32 | 204 | Takao Suzuki (WC) | 80 |  Wesley Moodie (14) | 6-1 7-6(3) | H2H | 3 | 64 | 12 | 2 | 55.2% | 93.8% | 65.4% | 1/1 |
| 2003-09-29 | Tokyo | Hard | R64 | 204 | Takao Suzuki (WC) | 119 |  Alexander Waske | 7-6(5) 6-3 | H2H | 3 | 93 | 12 | 2 | 60.5% | 76.1% | 43.3% | 5/7 |
| 2003-09-22 | Shanghai | Hard | R16 | 118 |  Wayne Arthurs | 212 | Takao Suzuki (LL) | 6-1 6-2 | H2H | 3 | 51 | 14 | 6 | 59.6% | 80.6% | 47.6% | 1/1 |
| 2003-09-22 | Shanghai | Hard | R32 | 212 | Takao Suzuki (LL) | 83 | Lars Burgsmuller | 6-4 6-1 | H2H | 3 | 67 | 5 | 3 | 59.6% | 87.1% | 47.6% | 5/5 |
| 2003-06-23 | Wimbledon | Grass | R64 | 46 |  Karol Kucera | 303 | Takao Suzuki (Q) | 6-3 7-5 6-2 | H2H | 5 | 126 | 4 | 6 | 56.8% | 77.8% | 58.5% | 5/6 |
| 2003-06-23 | Wimbledon | Grass | R128 | 303 | Takao Suzuki (Q) | 112 |  Dick Norman (Q) | 7-6(8) 6-4 7-6(3) | H2H | 5 | 145 | 13 | 6 | 64.3% | 83.8% | 58.5% | 3/3 |
| 2003-02-07 | Davis Cup G1 R1: IND vs JPN | Grass | RR | 1003 |  Leander Paes | 132 | Takao Suzuki | 6-3 7-6(3) 6-4 | H2H | 5 | - | - | - | - | - | - | - |
| 2003-04-04 | Davis Cup G1 PO: JPN vs PAK | Carpet | RR | 243 | Takao Suzuki | - |  Aqeel Khan | 6-1 6-1 6-4 | H2H | 5 | - | - | - | - | - | - | - |
| 2003-04-04 | Davis Cup G1 PO: JPN vs PAK | Carpet | RR | 243 | Takao Suzuki | - | Shahzad Khan | 6-2 6-2 | H2H | 3 | - | - | - | - | - | - | - |
