Stadium: Sub Court B Round: 25 Ground: Hardcourt outdoor
| Challenger Launceston | 2020/02/02 23:00 | Naoki Tajima v Ryota Tanuma | 6-2,6-2 |
| ITF M15 Jakarta | 2022/08/17 05:00 | Ryota Tanuma v Yusuke Takahashi | 6-7,4-6 |
| ITF M15 Jakarta | 2022/08/14 03:00 | Yuta Shimizu v Ryota Tanuma | 6-2,7-5 |
| ITF M15 Jakarta | 2022/08/12 02:00 | Ryota Tanuma v Mitsuki Wei Kang Leong | 6-3,6-2 |
| ITF M15 Jakarta | 2022/08/11 02:00 | Ryota Tanuma v Uisung Park | 6-4,6-1 |
| ITF M15 Jakarta | 2022/08/10 02:00 | Ryota Tanuma v Lohithaksha Bathrinath | 6-3,6-4 |
| ITF M15 Kuching | 2022/08/05 03:00 | Ryota Tanuma v Moerani Bouzige | 6-7,6-1,1-6 |
| ITF M15 Kuching | 2022/08/04 04:30 | Ryota Tanuma v Yamato Sueoka | 6-4,6-3 |
| ITF M15 Kuching | 2022/08/02 00:50 | Ryota Tanuma v Naufal Siddiq Kamaruzzaman | 7-5,6-0 |
| ITF M15 Chiang Rai | 2022/06/23 02:55 | Fajing Sun v Naoki Tajima | 6-1,6-2 |
| ITF M15 Chiang Rai | 2022/06/22 02:00 | Naoki Tajima v Rishi Reddy | 6-4,3-6,6-3 |
| ITF M15 Chiang Rai | 2022/06/15 05:00 | Naoki Tajima v Makoto Ochi | 2-6,2-6 |
| ITF M25 Chiang Rai | 2022/06/08 02:00 | Manish Sureshkumar v Naoki Tajima | 6-2,6-2 |
| ITF M15 Antalya | 2022/05/11 06:50 | Naoki Tajima v Deney Wassermann | 3-6,1-6 |
| ITF M15 Antalya | 2022/05/03 13:05 | Mert Naci Turker v Naoki Tajima | 6-1,6-0 |
| ITF M15 Chiang Rai | 2022/04/26 06:20 | Rubin Statham v Naoki Tajima | 6-3,6-2 |
| ITF M15 Chiang Rai | 2022/04/20 06:20 | Naoki Tajima v Dayne Kelly | 3-6,2-6 |