Stadium: Court 7 Round: 19 Ground: Hardcourt outdoor
| ITF - M25 Nottingham - Qualif. | 2023/04/30 09:00 | Issei Okamura v White, Joseph | 6-0,6-2 |
| ITF - M25 Nottingham | 2023/04/25 09:00 | Issei Okamura v George Houghton | 2-6,1-6 |
| ITF - M25 Nottingham - Qualif. | 2023/04/24 13:00 | Issei Okamura v Max Benaim | 6-4,6-4 |
| Kashiwa, Singles Main, M-ITF-JPN-03A | 2023/04/06 03:40 | Kaito Uesugi v Issei Okamura | 6-1,6-4 |
| Kashiwa, Singles Main, M-ITF-JPN-03A | 2023/04/05 05:35 | Issei Okamura v Sho Shimabukuro | 7-6,0-6,7-6 |
| Kashiwa, Singles Main, M-ITF-JPN-03A | 2023/04/03 01:00 | Koki Matsuda v Issei Okamura | 1-6,2-6 |
| Kashiwa, Singles Main, M-ITF-JPN-03A | 2023/04/02 00:30 | Taketo Takamisawa v Issei Okamura | 1-6,2-6 |
| ITF M25 Tsukuba | 2023/03/27 05:00 | Ryotaro Taguchi v Issei Okamura | 7-5,6-2 |
| ITF - M25 Nottingham - Qualif. | 2023/04/30 09:00 | Ryan James Storrie v Michael Shaw | 6-2,6-4 |
| ITF - M25 Nottingham | 2023/04/26 13:40 | Clement Chidekh v Ryan James Storrie | 7-6,7-6 |
| ITF - M25 Nottingham | 2023/04/25 09:00 | Ben Jones v Ryan James Storrie | 3-6,6-7 |
| ITF - M25 Nottingham - Qualif. | 2023/04/24 09:00 | Ryan James Storrie v Joe Tyler | 6-3,7-6 |
| ITF - M25 Nottingham | 2023/04/17 09:30 | Francois Musitelli v Ryan James Storrie | 4-6,6-3,10-3 |
| ITF - M25 Nottingham | 2023/04/16 09:00 | Ryan James Storrie v Michael Shaw | 6-1,6-7,10-5 |
| ITF M15 Creteil | 2023/03/08 13:15 | David Jorda Sanchis v Ryan James Storrie | 6-4,6-2 |
| ITF - M15 Sharm El Sheikh | 2023/03/01 08:00 | Ryan James Storrie v Marat Sharipov | 3-6,2-6 |