Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| Challenger Sydney | 2022/10/31 01:55 | Luke Saville v Kazuma Kawachi | 7-6,6-1 |
| Challenger Sydney | 2022/10/30 04:50 | Jake Delaney v Kazuma Kawachi | 4-6,3-6 |
| ITF M25 Kashiwa | 2022/09/27 03:25 | Asahi Harazaki v Kazuma Kawachi | 6-3,6-2 |
| ITF M25 Sapporo | 2022/09/07 02:50 | Kazuma Kawachi v Takuto Niki | 6-3,1-6,1-6 |
| ITF M15 Daegu | 2022/09/02 02:00 | Kazuma Kawachi v Palaphoom Kovapitukted | 4-6,4-6 |
| ITF M15 Daegu | 2022/09/01 02:00 | Kazuma Kawachi v Dong Ju Kim | 6-7,6-0,6-4 |
| ITF M15 Daegu | 2022/08/31 08:05 | Kazuma Kawachi v Jangjun Kim | 6-4,1-6,7-5 |
| ITF M15 Monastir | 2022/08/25 09:25 | Kazuma Kawachi v Matthew Dellavedova | 1-6,1-6 |
| Challenger Nonthaburi | 2023/01/02 09:05 | Hiroki Moriya v Yu Hsiou Hsu | 3-6,2-6 |
| Challenger Yokkaichi | 2022/11/22 03:35 | Shinji Hazawa v Hiroki Moriya | 7-5,6-1 |
| Challenger Kobe | 2022/11/15 01:00 | Shintaro Imai v Hiroki Moriya | 6-4,6-3 |
| Challenger Matsuyama | 2022/11/09 01:00 | Hiroki Moriya v Tung-Lin Wu | 6-1,5-7,1-6 |
| Challenger Matsuyama | 2022/11/07 05:25 | Yusuke Kusuhara v Hiroki Moriya | 1-6,1-6 |
| Challenger Yokohama | 2022/11/01 07:05 | Hiroki Moriya v Filip Cristian Jianu | 6-7,6-0,4-6 |
| Challenger Busan | 2022/10/18 06:55 | Marek Gengel v Hiroki Moriya | 1-6,6-4,6-2 |
| Challenger Seoul | 2022/10/11 05:55 | John Millman v Hiroki Moriya | 6-3,6-1 |