Stadium: Indoor A Round: 25 Ground: Hardcourt outdoor
| ITF M25 Sapporo | 2023/09/06 00:55 | Yuichiro Inui v Takuya Kumasaka | 3-6,4-6 |
| ITF M25 Hong Kong | 2023/09/03 02:00 | Takuya Kumasaka v Kasidit Samrej | 3-6,6-1,5-10 |
| ITF M25 Hong Kong | 2023/08/31 02:00 | Tsung-Hao Huang v Takuya Kumasaka | 6-1,2-6,1-6 |
| ITF M25 Hong Kong | 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 M25 Tainan | 2023/08/17 04:05 | Tsung-Hao Huang v Takuya Kumasaka | 6-2,4-6,7-6 |
| ITF M25 Tainan | 2023/08/15 02:00 | Seita Watanabe v Takuya Kumasaka | 3-6,6-4,2-6 |
| ITF M25 Sapporo | 2023/09/04 01:00 | Koki Matsuda v Ko Suzuki | 6-1,4-6,7-10 |
| ITF M25 Tainan | 2023/08/15 04:45 | Koki Matsuda v Makoto Ochi | 3-6,7-5,4-6 |
| ITF M25 Jakarta | 2023/08/09 05:30 | Koki Matsuda v Arthur Weber | 2-6,2-6 |
| UTR Pro Osaka | 2023/07/30 02:00 | Koki Matsuda v Rikuto Yamaguchi | 7-6,6-1 |
| UTR Pro Osaka | 2023/07/29 01:05 | Koki Matsuda v Min Soo Chae | 7-5,5-2 |
| UTR Pro Osaka | 2023/07/27 07:32 | Koki Matsuda v Jake Bhangdia | 6-2,6-4 |
| UTR Pro Osaka | 2023/07/26 04:00 | Mizuki Kawada v Koki Matsuda | 0-6,2-6 |
| UTR Pro Osaka | 2023/07/25 02:00 | Yuto Okuchi v Koki Matsuda | 3-6,3-6 |