Estádio: Court 8 Round: 14 Ground: Hardcourt outdoor
| Challenger - Yokohama | 2022/11/01 05:55 | Damir Dzumhur v Ryota Tanuma | 6-3,6-1 |
| Challenger - Yokohama | 2022/10/31 01:30 | Rimpei Kawakami v Ryota Tanuma | 6-7,6-4,4-6 |
| Challenger - Seul | 2022/10/09 06:00 | Hamad Medjedovic v Ryota Tanuma | 6-4,6-3 |
| ATP - Tóquio | 2022/10/01 07:55 | Ryota Tanuma v Ramkumar Ramanathan | 5-7,3-6 |
| ITF - M25 Kashiwa | 2022/10/01 02:45 | Rimpei Kawakami v Ryota Tanuma | 6-3,6-2 |
| ITF - M25 Kashiwa | 2022/09/30 01:00 | Ryota Tanuma v Koki Matsuda | 7-6,6-3 |
| ITF - M25 Kashiwa | 2022/09/29 01:00 | Ryota Tanuma v Asahi Harazaki | 7-5,6-4 |
| ITF - M25 Kashiwa | 2022/09/28 03:55 | Ryota Tanuma v Taketo Takamisawa | 7-6,6-3 |
| Challenger - Yokohama | 2022/10/31 06:45 | Yosuke Watanuki v Naoki Nakagawa | 6-4,6-4 |
| Challenger - Busan | 2022/10/18 03:55 | Christopher Eubanks v Naoki Nakagawa | 6-0,6-3 |
| Challenger - Busan | 2022/10/17 05:05 | Mukund Sasikumar v Naoki Nakagawa | 6-3,6-4 |
| Challenger - Busan | 2022/10/16 04:35 | Daisuke Sumizawa v Naoki Nakagawa | 7-6,4-6,1-6 |
| Challenger - Seul | 2022/10/12 03:25 | Li Tu v Naoki Nakagawa | 6-3,6-2 |
| Challenger - Seul | 2022/10/11 04:45 | Naoki Nakagawa v Alexei Popyrin | 3-6,7-5,7-6 |
| Challenger - Seul | 2022/10/10 06:30 | Max Purcell v Naoki Nakagawa | 4-6,6-3,5-7 |
| Challenger - Seul | 2022/10/09 08:05 | Naoki Nakagawa v Keegan Smith | 6-4,3-6,6-3 |