Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Edwardsville | 2023/07/29 14:00 | Aidan Mchugh v Shunsuke Mitsui | 6-2,6-4 |
| ITF M25 Edwardsville | 2023/07/28 14:45 | Vito Tonejc v Shunsuke Mitsui | 5-7,2-6 |
| ITF M25 Edwardsville | 2023/07/27 13:30 | Shunsuke Mitsui v Jaimee Floyd Angele | 3-6,6-4,6-2 |
| ITF M25 Edwardsville | 2023/07/25 17:10 | Cash Hanzlik v Shunsuke Mitsui | 7-5,4-6,4-6 |
| ITF M25 Champaign | 2023/07/20 17:05 | Shunsuke Mitsui v Aidan Mchugh | 6-7,2-6 |
| ITF M25 Anseong | 2023/06/23 02:00 | Yunseong Chung v Shunsuke Mitsui | 6-1,6-1 |
| ITF M25 Anseong | 2023/06/22 02:00 | Woobin Shin v Shunsuke Mitsui | 3-6,2-6 |
| ITF M25 Anseong | 2023/06/20 02:00 | Woohyuk Sim v Shunsuke Mitsui | 0-6,2-6 |
| ITF M25 Decatur | 2023/08/01 16:05 | Oliver Okonkwo v Semen Pankin | 6-2,1-6,10-8 |
| ITF M25 Edwardsville | 2023/07/24 14:00 | Kenta Miyoshi v Oliver Okonkwo | 6-3,6-4 |
| ITF M25 Champaign | 2023/07/18 14:55 | Perry Gregg v Oliver Okonkwo | 3-6,6-2,10-7 |
| ITF M15 South Bend | 2023/06/21 17:05 | Adhithya Ganesan v Oliver Okonkwo | 6-0,6-3 |
| ITF M15 South Bend | 2023/06/20 15:00 | John Bernard v Oliver Okonkwo | 2-6,4-6 |
| ITF M15 South Bend | 2023/06/19 14:00 | Oliver Okonkwo v Sean Daryabeigi | 3-6,6-3,13-11 |
| UTR Pro London | 2023/05/20 10:16 | Luka Petrovic v Oliver Okonkwo | 6-4,6-4 |
| UTR Pro London | 2023/05/19 07:00 | Oliver Okonkwo v Ben Hudson | 6-3,5-4 |