Stadium: Court 7 Round: 45 Ground: Hardcourt outdoor
| ITF M15 - Tsukuba | 2019/03/28 01:00 | Ryota Tanuma v Shintaro Imai | 5-7,3-6 |
| ITF M15 - Tsukuba | 2019/03/26 01:00 | Aoran Wang v Ryota Tanuma | 6-7,5-7 |
| ITF M15 - Kofu | 2019/03/23 02:55 | Jumpei Yamasaki v Ryota Tanuma | 6-2,6-4 |
| ITF M15 - Kofu | 2019/03/22 02:00 | Issei Okamura v Ryota Tanuma | 4-6,2-6 |
| ITF M15 - Kofu | 2019/03/21 04:15 | Ryota Tanuma v Kento Takeuchi | 6-4,6-4 |
| ITF M15 - Kofu | 2019/03/20 01:00 | Yunosuke Tanaka v Ryota Tanuma | 6-2,3-6,4-6 |
| ITF M15 - Nishi-Tokyo | 2019/03/14 01:00 | Ryota Tanuma v Blake Ellis | 1-6,2-6 |
| ITF M15 - Nishi-Tokyo | 2019/03/13 05:55 | Kousuke Ogura v Ryota Tanuma | 2-6,6-7 |
| ITF M15 - Tsukuba | 2019/03/25 04:30 | Mick Veldheer v Tamaki Yamao | 6-1,6-3 |
| ITF M15 - Tsukuba | 2019/03/25 01:00 | Tamaki Yamao v Hao Yuan Ng | 6-3,6-2 |
| ITF M15 - Kofu | 2019/03/21 02:00 | Hiroyasu Ehara v Tamaki Yamao | 6-3,4-6,6-0 |
| ITF M15 - Kofu | 2019/03/20 01:00 | Tamaki Yamao v Michael Look | 6-2,6-3 |
| ITF M15 - Kofu | 2019/03/18 06:30 | Tamaki Yamao v Pak Long Yeung | 6-3,6-7,10-6 |
| ITF M15 - Kofu | 2019/03/18 03:00 | Yuichi Ito v Tamaki Yamao | 2-6,3-6 |
| ITF M15 - Antalya | 2019/02/11 07:00 | Tamaki Yamao v Arklon H D Pino | 6-7,6-7 |
| Challenger Kobe | 2018/11/10 03:35 | Tamaki Yamao v Naoki Tajima | 4-6,5-7 |