Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| Challenger Matsuyama | 2023/11/07 04:45 | Tung-Lin Wu v Yasutaka Uchiyama | 4-6,1-6 |
| Challenger Playford | 2023/10/25 23:30 | Yasutaka Uchiyama v Rinky Hijikata | 2-6,5-7 |
| Challenger Playford | 2023/10/23 04:35 | Omar Jasika v Yasutaka Uchiyama | 3-6,2-6 |
| ATP Tokyo | 2023/10/15 04:50 | Marcos Giron v Yasutaka Uchiyama | 6-3,6-2 |
| ATP Tokyo | 2023/10/14 03:45 | Yasutaka Uchiyama v Brandon Nakashima | 7-6,4-6,6-3 |
| ATP Shanghai | 2023/10/03 04:30 | Chun Hsin Tseng v Yasutaka Uchiyama | 7-6,4-6,6-3 |
| ATP Shanghai | 2023/10/02 04:00 | Yasutaka Uchiyama v Evgeny Donskoy | 6-2,4-6,6-1 |
| Challenger Shanghai | 2023/09/05 04:40 | Hanyi Liu v Yasutaka Uchiyama | 1-6,6-7 |
| 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 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 |