| UTR Pro Osaka | 2023/07/30 02:00 | Koki Matsuda v Rikuto Yamaguchi | 7-6,6-1 |
| UTR Pro Osaka | 2023/07/29 03:30 | Rikuto Yamaguchi v Shinde Yuzuki | 6-4,6-6 |
| UTR Pro Osaka | 2023/07/28 05:10 | Christian Heaney-Secord v Rikuto Yamaguchi | 6-1,4-6,4-6 |
| UTR Pro Osaka | 2023/07/27 06:30 | Hiroki Fujita v Rikuto Yamaguchi | 5-7,3-6 |
| 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 |