Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| 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 Sapporo | 2022/09/05 04:00 | Issei Okamura v Taiki Nagamine | 6-1,6-3 |
| ITF M15 Daegu | 2022/08/31 08:10 | Duckhee Lee v Issei Okamura | 5-7,6-1,6-3 |
| Challenger Nonthaburi | 2023/01/22 03:30 | Sho Shimabukuro v Arthur Cazaux | 6-2,7-5 |
| Challenger Nonthaburi | 2023/01/21 03:30 | Sho Shimabukuro v Seong Chan Hong | 6-2,7-5 |
| Challenger Nonthaburi | 2023/01/20 03:30 | Sho Shimabukuro v Zdenek Kolar | 6-0,6-7,6-2 |
| Challenger Nonthaburi | 2023/01/18 03:30 | James Duckworth v Sho Shimabukuro | 6-7,6-4,1-6 |
| Challenger Nonthaburi | 2023/01/16 07:55 | Sho Shimabukuro v Mats Moraing | 6-3,6-2 |
| Challenger Nonthaburi | 2023/01/10 04:45 | Sho Shimabukuro v Jason Jung | 4-6,1-6 |
| Challenger Nonthaburi | 2023/01/04 05:45 | Sho Shimabukuro v Antoine Escoffier | 6-2,6-7,3-6 |
| Challenger Nonthaburi | 2023/01/03 06:35 | Sho Shimabukuro v Beibit Zhukayev | 6-4,3-6,6-4 |