| 1999-04-12 | Tokyo | Hard | R64 | 94 |  Oliver Gross | 569 |  Yasufumi Yamamoto (WC) | 6-4 6-4 | H2H | 3 | 78 | 7 | 2 | 50.0% | 73.3% | 53.3% | 2/4 |
| 1997-04-14 | Tokyo | Hard | R64 | 322 | Carsten Arriens (Q) | 544 | Yasufumi Yamamoto (WC) | 6-2 7-5 | H2H | 3 | 76 | 4 | 2 | 72.5% | 81.1% | 64.3% | 1/2 |
| 1996-04-15 | Tokyo | Hard | R64 | 61 |  Kenneth Carlsen (16) | 306 | Yasufumi Yamamoto (WC) | 5-7 6-4 6-2 | H2H | 3 | 121 | 6 | 5 | 58.3% | 81.6% | 42.9% | 1/4 |
| 1994-04-29 | Davis Cup G1 SF: NZL vs JPN | Carpet | RR | 75 |  Brett Steven | 317 | Yasufumi Yamamoto | 6-3 6-4 2-6 7-6(3) | H2H | 5 | - | - | - | - | - | - | - |
| 1994-04-29 | Davis Cup G1 SF: NZL vs JPN | Carpet | RR | 317 | Yasufumi Yamamoto | 785 | Kelly Evernden | 7-5 7-6(6) | H2H | 3 | - | - | - | - | - | - | - |
| 1994-04-04 | Tokyo Outdoor | Hard | R64 | 93 |  Andrei Olhovskiy | 318 | Yasufumi Yamamoto (WC) | 6-4 6-4 | H2H | 3 | 82 | 7 | 3 | 59.4% | 78.9% | 38.5% | 2/4 |
| 1994-03-28 | Osaka | Hard | R32 | 104 |  Jeff Tarango | 322 | Yasufumi Yamamoto (WC) | 6-1 6-4 | H2H | 3 | 59 | 3 | 2 | 61.7% | 89.7% | 61.1% | 1/1 |
| 1994-03-25 | Davis Cup G1 QF: JPN vs PHI | Carpet | RR | 320 | Yasufumi Yamamoto | 1183 |  Robert Angelo | 3-6 6-1 6-2 | H2H | 3 | - | - | - | - | - | - | - |
| 1994-03-25 | Davis Cup G1 QF: JPN vs PHI | Carpet | RR | 320 | Yasufumi Yamamoto | 753 | Joseph Lizardo | 6-2 6-3 6-3 | H2H | 5 | - | - | - | - | - | - | - |
| 1994-02-04 | Davis Cup G1 PR: CHN vs JPN | Carpet | RR | 316 | Yasufumi Yamamoto | 395 |  Bing Pan | 6-4 7-5 | H2H | 3 | - | - | - | - | - | - | - |
