Estadio: Court 5 Round: 29 Ground: Hardcourt outdoor
| ITF Hong Kong F1 | 2018/06/29 02:00 | Jumpei Yamasaki v Yuki Mochizuki | 4-6,4-6 |
| ITF Japón F1 | 2018/03/08 07:15 | Jumpei Yamasaki v Yuki Mochizuki | 1-6,3-6 |
| ITF Hong Kong F1 | 2017/06/23 02:30 | Jumpei Yamasaki v Yuki Mochizuki | 5-7,2-6 |
| ITF M15 Kashiwa | 2019/04/06 01:00 | Yuki Mochizuki v Yusuke Takahashi | 7-6,6-4 |
| ITF M15 Kashiwa | 2019/04/05 01:00 | Sho Shimabukuro v Yuki Mochizuki | 6-2,5-7,3-6 |
| ITF M15 Kashiwa | 2019/04/04 01:00 | Yuki Mochizuki v Kuan-Yi Lee | 2-6,6-3,6-4 |
| ITF M15 Kashiwa | 2019/04/02 02:40 | Yuki Mochizuki v Hikaru Shiraishi | 3-6,6-4,7-6 |
| ITF M15 Tsukuba | 2019/03/29 01:00 | Yuki Mochizuki v Shintaro Imai | 3-6,6-1,4-6 |
| ITF M15 Tsukuba | 2019/03/28 01:00 | Kuan-Yi Lee v Yuki Mochizuki | 2-6,6-1,5-7 |
| ITF M15 Tsukuba | 2019/03/26 01:00 | Takumi Kato v Yuki Mochizuki | 1-6,2-6 |
| ITF M15 Kofu | 2019/03/20 05:15 | Kento Takeuchi v Yuki Mochizuki | 1-6,6-4,6-3 |
| ITF M15 Kashiwa | 2019/04/05 01:00 | Cheong-Eui Kim v Jumpei Yamasaki | 4-6,6-3,4-6 |
| ITF M15 Kashiwa | 2019/04/04 01:00 | Issei Okamura v Jumpei Yamasaki | 3-6,2-6 |
| ITF M15 Kashiwa | 2019/04/03 06:15 | Jumpei Yamasaki v Ji Sung Nam | 6-3,2-6,7-6 |
| ITF M15 Tsukuba | 2019/03/31 02:00 | Jumpei Yamasaki v Shintaro Imai | 4-6,4-6 |
| ITF M15 Tsukuba | 2019/03/30 01:00 | Mick Veldheer v Jumpei Yamasaki | 2-6,2-6 |
| ITF M15 Tsukuba | 2019/03/29 01:00 | Gage Brymer v Jumpei Yamasaki | 3-6,7-6,5-7 |
| ITF M15 Tsukuba | 2019/03/28 01:00 | Yunosuke Tanaka v Jumpei Yamasaki | 2-6,6-1,3-6 |
| ITF M15 Tsukuba | 2019/03/27 02:25 | Jumpei Yamasaki v Masamichi Imamura | 6-1,4-6,6-4 |