Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Manacor | 2024/01/24 09:30 | Karl Friberg v Hayato Matsuoka | 7-6,5-7,6-2 |
| ITF M15 Manacor | 2024/01/23 12:00 | Hayato Matsuoka v Ben Weintraub | 6-3,3-6,10-6 |
| ITF M15 Manacor | 2024/01/22 09:30 | Hayato Matsuoka v Lamin L Da Silva | 6-4,6-2 |
| ITF - M15 Yanagawa | 2023/12/29 01:00 | Hayato Matsuoka v Sanhui Shin | 1-6,2-6 |
| ITF - M15 Yanagawa | 2023/12/28 02:35 | Hanyi Liu v Hayato Matsuoka | 1-6,3-6 |
| ITF - M15 Yanagawa | 2023/12/26 01:30 | Hayato Matsuoka v Daiki Yoshimura | 6-3,6-1 |
| ITF - M15 Yanagawa | 2023/12/20 02:30 | Seita Watanabe v Hayato Matsuoka | 7-5,6-2 |
| ITF M15 - Kuala Lumpur | 2023/11/29 03:00 | Andrea Bacaloni v Hayato Matsuoka | 6-4,7-5 |
| ITF - M15 Sharm-el-Sheikh | 2024/01/30 08:00 | Saveliy Ivanov v Oskar Grzegorzewski | 6-2,6-1 |
| ITF - M15 Sharm-el-Sheikh | 2024/01/29 08:00 | Alexander Krylov v Oskar Grzegorzewski | 4-6,1-6 |
| ITF - M15 Sharm-el-Sheikh | 2024/01/28 08:00 | Adam Bajurko v Oskar Grzegorzewski | 1-6,1-6 |
| ITF M25 - Sunderland | 2024/01/15 10:00 | Daniel Cox v Oskar Grzegorzewski | 6-2,6-3 |
| ITF M25 - Sunderland | 2024/01/14 10:00 | Ioannis Stamatopoulos v Oskar Grzegorzewski | 3-6,0-6 |
| ITF - M15 Monastir | 2023/11/29 08:25 | Jakub Paul v Oskar Grzegorzewski | 6-0,6-3 |
| ITF - M15 Monastir | 2023/11/27 10:00 | Oskar Grzegorzewski v Mariano Andres Bibiloni | 6-0,6-1 |
| ITF - M15 Monastir | 2023/11/26 11:00 | Oskar Grzegorzewski v Adam Majchrzak | 6-2,5-7,10-8 |