Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| 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 |
| UTR Pro London | 2023/05/17 08:30 | Oliver Okonkwo v Kabeer Kapasi | 6-2,6-1 |
| ITF M25 Decatur | 2023/07/31 14:00 | Shayan Najam v Semen Pankin | 1-6,0-6 |
| ITF M15 Pittsburgh | 2023/07/25 14:00 | Ryan Dickerson v Semen Pankin | 6-1,6-1 |
| ITF M15 South Bend | 2023/06/22 16:00 | Aidan Kim v Semen Pankin | 7-5,6-3 |
| ITF M15 South Bend | 2023/06/21 21:30 | Semen Pankin v Nil Giraldez | 6-4,7-5 |
| ITF M15 South Bend | 2023/06/20 15:00 | Semen Pankin v Sasha Trkulja | 7-5,6-2 |
| ITF M15 South Bend | 2023/06/19 14:00 | Jean-Christian Morandais v Semen Pankin | 5-7,6-4,2-10 |
| ITF M25 Calabasas | 2023/03/20 18:00 | Semen Pankin v Cooper Williams | 6-7,2-6 |
| ITF Russia F5 Qual | 2018/08/06 09:05 | Ilya Rudiukov v Semen Pankin | 3-6,6-4,6-4 |