Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Kuching | 2023/11/15 02:00 | David Pichler v Takuya Kumasaka | 4-6,3-6 |
| ITF M25 Sapporo | 2023/09/12 05:40 | Takuya Kumasaka v Koki Matsuda | 0-6,2-6 |
| ITF M25 Sapporo | 2023/09/06 00:55 | Yuichiro Inui v Takuya Kumasaka | 3-6,4-6 |
| ITF M25 Hongkong | 2023/09/03 02:00 | Takuya Kumasaka v Kasidit Samrej | 3-6,6-1,5-10 |
| ITF M25 Hongkong | 2023/08/31 02:00 | Tsung-Hao Huang v Takuya Kumasaka | 6-1,2-6,1-6 |
| ITF M25 Hongkong | 2023/08/29 03:40 | Ki Lung NG v Takuya Kumasaka | 6-4,0-6,1-6 |
| ITF M25 Tainan | 2023/08/25 02:00 | Ergi Kirkin v Takuya Kumasaka | 6-2,6-2 |
| ITF M25 Tainan | 2023/08/24 05:10 | Kai-I Wang v Takuya Kumasaka | 4-6,6-3,2-6 |
| ITF M15 Kuching | 2023/11/14 03:00 | Kokoro Isomura v Mitsuki Wei Kang Leong | 6-2,6-0 |
| ITF M25 Cairns | 2023/10/13 01:00 | Blake Mott v Kokoro Isomura | 7-5,6-0 |
| ITF M25 Cairns | 2023/10/12 00:00 | Kokoro Isomura v Shuichi Sekiguchi | 6-4,4-6,6-3 |
| ITF M25 Cairns | 2023/10/10 07:45 | Kokoro Isomura v Tom Evans | 6-0,6-2 |
| ITF M25 Cairns | 2023/10/04 03:00 | Kokoro Isomura v Jeremy Beale | 4-6,0-6 |
| ITF M25 Darwin | 2023/09/20 05:30 | Kokoro Isomura v Scott Jones | 3-6,1-6 |
| ITF M25 Darwin | 2023/09/14 08:25 | Moerani Bouzige v Kokoro Isomura | 5-7,6-3,6-4 |
| ITF M25 Darwin | 2023/09/13 09:50 | Tai Leonard Sach v Kokoro Isomura | 4-6,2-6 |