Estadio: Indoor 6 Round: 26 Ground: Hardcourt outdoor
| ITF Japón F4 | 2018/03/28 01:00 | Jumpei Yamasaki v Makoto Ochi | 1-6,2-6 |
| ITF M25 Qujing | 2019/07/10 04:00 | Rui-Xuan Wang v Jumpei Yamasaki | 4-6,2-6 |
| ITF M25 Matsuyama | 2019/04/10 07:00 | Jumpei Yamasaki v Issei Okamura | 6-4,5-7,1-6 |
| ITF M15 Kashiwa | 2019/04/07 03:30 | Yuki Mochizuki v Jumpei Yamasaki | 2-6,6-2,2-6 |
| 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 M25 Qujing | 2019/07/09 05:15 | Cing-Yang Meng v Makoto Ochi | 0-6,4-6 |
| ITF M15 Anseong | 2019/06/25 04:10 | Makoto Ochi v Jean Thirouin | 4-6,7-6,3-6 |
| Challenger de Fergana | 2019/06/17 07:25 | Shuichi Sekiguchi v Makoto Ochi | 6-4,6-4 |
| Challenger de Columbus | 2019/06/11 14:00 | Zsombor Piros v Makoto Ochi | 6-4,7-5 |
| Challenger de Little Rock | 2019/06/04 15:00 | Orlando Luz v Makoto Ochi | 6-4,5-7,7-6 |
| Challenger de Jerusalén | 2019/05/20 09:15 | Makoto Ochi v Evan King | 6-3,3-6,1-6 |
| Challenger Gwangju | 2019/05/15 02:00 | Makoto Ochi v Evgeny Donskoy | 3-6,4-6 |
| Challenger Gwangju | 2019/05/14 02:00 | Cheng-Peng Hsieh v Makoto Ochi | 6-4,5-7,3-6 |