Stadium: Court 5 Round: 54 Ground: Hardcourt outdoor
| Challenger Burnie | 2023/01/29 23:00 | Yusuke Takahashi v Issei Okamura | 6-4,6-2 |
| Challenger Burnie | 2023/01/29 01:35 | Liam Puttergill v Issei Okamura | 1-6,3-6 |
| ITF M15 Jakarta Qual | 2023/01/23 03:55 | Bang Shuo Yin v Issei Okamura | 7-6,5-7,10-5 |
| ITF M15 Jakarta | 2023/01/16 07:15 | Manish Ganesh v Issei Okamura | 3-6,6-3,10-3 |
| ITF M25 Jakarta | 2022/11/01 03:35 | Issei Okamura v Fitriadi M Rifqi | 1-6,3-6 |
| ITF M25 Kashiwa | 2022/09/29 01:55 | Issei Okamura v Shinji Hazawa | 1-6,4-6 |
| ITF M25 Kashiwa | 2022/09/28 01:00 | Takuto Niki v Issei Okamura | 3-6,6-7 |
| ITF M25 Sapporo | 2022/09/07 05:15 | Tatsuma Ito v Issei Okamura | 6-1,6-2 |
| ITF M25 Traralgon | 2022/11/20 00:00 | Mason Naumovski v Rhys Searant | 5-7,4-6 |
| ITF M25 Traralgon | 2022/11/13 00:00 | Mason Naumovski v Luke Vuletic | 2-6,4-6 |
| ITF M25 Cairns | 2022/10/10 01:50 | Arjun Mehrotra v Mason Naumovski | 6-4,6-4 |
| ITF M25 Cairns | 2022/10/04 00:55 | Matt Hulme v Mason Naumovski | 7-5,7-5 |
| ITF M25 Cairns | 2022/10/03 02:45 | Mason Naumovski v Hanival Kahsay | 6-0,6-4 |
| ITF M15 Caloundra | 2022/07/25 00:00 | Tai Leonard Sach v Mason Naumovski | 6-4,6-3 |
| ITF M15 Sofia | 2022/07/04 08:00 | Mason Naumovski v Tuncay Duran | 1-6,1-6 |
| ITF M15 Sofia | 2022/07/03 09:00 | Richard Zusman v Mason Naumovski | 3-6,2-6 |