Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Nakhon Si Thammarat | 2023/06/06 02:00 | Shinji Hazawa v Suksumrarn, Thantub | 6-0,6-3 |
| ITF - M15 Nakhon Si Thammarat | 2023/05/31 02:00 | Shinji Hazawa v Chase Ferguson | 2-6,4-6 |
| Challenger - Busan | 2023/05/08 02:00 | Jason Jung v Shinji Hazawa | 6-2,6-4 |
| Challenger - Gwangju | 2023/04/30 03:05 | Shinji Hazawa v Gojowczyk, Peter | 1-6,3-6 |
| Challenger Seoul | 2023/04/24 02:00 | Nam, Ji Sung v Shinji Hazawa | 6-2,6-4 |
| Challenger Seoul | 2023/04/23 02:00 | Shinji Hazawa v Ajeet Rai | 4-6,6-3,6-4 |
| Kashiwa, Singles Main, M-ITF-JPN-03A | 2023/04/05 01:00 | Hikaru Shiraishi v Shinji Hazawa | 6-7,6-2,6-3 |
| ITF M25 Tsukuba | 2023/03/28 05:55 | Ryuki Matsuda v Shinji Hazawa | 6-2,6-4 |
| ITF - M15 Nakhon Si Thammarat | 2023/06/06 01:55 | Finn Reynolds v Teerapat Khantiweerawat | 6-4,6-2 |
| ITF - M15 Nakhon Si Thammarat | 2023/05/31 02:00 | Blake Ellis v Finn Reynolds | 6-3,6-1 |
| ITF M15 Tacarigua | 2023/04/27 21:05 | Finn Reynolds v Victor Lilov | 3-6,4-6 |
| ITF M15 Tacarigua | 2023/04/25 19:25 | Finn Reynolds v Justin Roberts | 7-6,4-6,6-2 |
| ITF M15 Tacarigua | 2023/04/20 18:00 | Edward Winter v Finn Reynolds | 5-7,6-2,7-6 |
| ITF M15 Tacarigua | 2023/04/18 21:00 | Finn Reynolds v Cadogan, Joseph | 6-4,7-5 |
| ITF M15 Tacarigua | 2023/04/17 18:00 | Finn Reynolds v Smarty, Chukwudumebi | 6-2,6-1 |
| ITF - M25 Calabasas | 2023/03/23 20:45 | Omni Kumar v Finn Reynolds | 6-4,3-6,10-2 |