Estadio: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF Japón F1 | 2018/03/07 04:45 | Issei Okamura v Shinji Hazawa | 6-3,1-6,3-6 |
| ITF M25 Kashiwa | 2022/09/28 01:00 | Takuto Niki v Issei Okamura | 3-6,6-7 |
| ITF M25 Sapporo | 2022/09/07 05:15 | Tatsuma Ito v Issei Okamura | 6-1,6-2 |
| ITF M25 Sapporo | 2022/09/05 04:00 | Issei Okamura v Taiki Nagamine | 6-1,6-3 |
| ITF M15 Daegu | 2022/08/31 08:10 | Duckhee Lee v Issei Okamura | 5-7,6-1,6-3 |
| ITF M15 Changwon | 2022/08/26 00:55 | Ajeet Rai v Issei Okamura | 6-1,6-7,6-3 |
| ITF M15 Changwon | 2022/08/25 03:05 | Issei Okamura v Duckhee Lee | 6-2,3-6,7-5 |
| ITF M15 Changwon | 2022/08/23 01:00 | Issei Okamura v Min Seong Kim | 6-4,6-0 |
| ITF M15 Yakarta | 2022/08/15 04:45 | Issei Okamura v Amor Jasika | 3-6,4-6 |
| ITF M25 Kashiwa | 2022/09/27 01:00 | Kokoro Isomura v Shinji Hazawa | 5-7,4-6 |
| Challenger de Nonthaburi - Clasificación | 2022/09/04 07:30 | Shinji Hazawa v Naoki Nakagawa | 4-6,4-6 |
| Challenger de Nonthaburi | 2022/08/21 07:40 | Shinji Hazawa v Yuta Shimizu | 2-6,4-6 |
| ITF M15 Kuching | 2022/08/03 01:00 | Kokoro Isomura v Shinji Hazawa | 2-6,6-3,6-1 |
| ITF M15 Kuala Lumpur | 2022/07/29 01:00 | Shinji Hazawa v Yuta Shimizu | 4-6,3-6 |
| ITF M15 Kuala Lumpur | 2022/07/28 01:00 | Shinji Hazawa v Takuya Kumasaka | 6-3,7-5 |
| ITF M15 Seremban | 2022/07/24 01:00 | Shinji Hazawa v Daisuke Sumizawa | 0-6,2-6 |
| ITF M15 Seremban | 2022/07/23 05:15 | Ji Hoon Son v Shinji Hazawa | 3-6,6-4,3-6 |