| UTR Pro Osaka | 2023/07/26 04:00 | Shin Inoue v Hiroki Fujita | 6-3,6-3 |
| UTR Pro Osaka | 2023/07/25 04:00 | Christian Heaney-Secord v Hiroki Fujita | 1-6,7-5,6-4 |
| UTR Pro Osaka | 2023/07/25 05:30 | Shin Inoue v Rikuto Yamaguchi | 6-7,3-6 |
| UTR Pro Osaka | 2023/07/24 07:00 | Rikuto Yamaguchi v Shion Itsusaki | 6-4,2-6,6-3 |
| UTR Pro Miki | 2023/07/01 03:30 | Rikuto Yamaguchi v Yuma Daijima | 4-6,3-5 |
| UTR Pro Miki | 2023/06/29 05:32 | Rikuto Yamaguchi v Ryotaro Taguchi | 2-6,1-6 |
| UTR Pro Miki | 2023/06/28 02:00 | Rikuto Yamaguchi v Ryoma Matsushita | 6-1,4-6,6-3 |
| UTR Pro Miki | 2023/06/27 02:00 | Rikuto Yamaguchi v Mizuki Kawada | 7-6,6-1 |
| UTR Pro Calgary | 2023/06/18 15:00 | Anish Sriniketh v Rikuto Yamaguchi | 6-2,6-4 |
| UTR Pro Calgary | 2023/06/17 19:30 | Rikuto Yamaguchi v Georgio Samaha | 6-4,6-4 |