| ITF M25 Anseong | 2023/06/21 03:40 | Hiroki Sakagawa v Duckhee Lee | 1-6,2-6 |
| ITF M25 Anseong | 2023/06/19 05:25 | Seung Woo Cho v Hiroki Sakagawa | 6-1,1-6,6-10 |
| ITF M25 Anseong | 2023/06/19 01:00 | Hyun Woo Cho v Hiroki Sakagawa | 6-4,2-6,4-10 |
| ITF M25 Anseong | 2023/06/18 01:00 | Hiroki Sakagawa v Jungmin Hwang | 6-0,6-2 |
| UTR Pro Tennis Series Texas | 2022/08/20 18:00 | Franco Ribero v Hiroki Sakagawa | 7-6,5-0 |
| UTR Pro Tennis Series Texas | 2022/08/18 19:30 | Hiroki Sakagawa v Alex Koong | 6-2,5-2 |
| UTR Pro Tennis Series Texas | 2022/08/17 18:00 | Callaway Clark v Hiroki Sakagawa | 0-6,6-4,7-6 |
| UTR Pro Tennis Series Texas | 2022/08/16 22:53 | Hiroki Sakagawa v Vishwa Aduru | 6-0,6-3 |
| 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 |