| UTR Pro Tennis Series Miki | 2022/07/06 05:00 | Yamato Sueoka v Hiroki Sakagawa | 6-3,5-3 |
| UTR Pro Tennis Series Miki | 2022/07/05 05:00 | Tatsuma Ito v Hiroki Sakagawa | 6-4,5-1 |
| UTR Pro Tennis Series California | 2021/05/26 15:00 | Matthew Tsolakyan v Hiroki Sakagawa | 6-2,5-3 |
| UTR Pro Tennis Series California | 2021/05/25 15:00 | Aditya Gupta v Hiroki Sakagawa | 6-3,5-4 |
| UTR Pro Tennis Series California | 2021/05/24 16:30 | Connor Farren v Hiroki Sakagawa | 6-2,6-3 |
| UTR Pro Tennis Series California | 2021/05/23 16:30 | Nathan Oppenheim v Hiroki Sakagawa | 1-6,1-6 |
| UTR Pro Tennis Series Miki | 2022/07/05 05:00 | Yamato Sueoka v Shin Inoue | 6-2,5-4 |
| UTR Pro Tennis Series Miki | 2022/07/04 00:30 | Shin Inoue v Kazuki Nishiwaki | 6-4,3-6,0-6 |