Stadium: Court 13 Round: 27 Ground: Hardcourt outdoor
| ITF Japan F1 | 2015/03/09 00:40 | Shintaro Imai v Issei Okamura | 6-0,6-1 |
| ITF Japan F8 | 2018/06/13 04:40 | Issei Okamura v Rio Noguchi | 4-6,3-6 |
| ITF Japan F7 | 2018/06/05 01:00 | Sora Fukuda v Issei Okamura | 6-3,6-1 |
| ITF China F6 | 2018/05/14 07:00 | Issei Okamura v Shi Hong Zeng | 2-6,3-6 |
| ITF Vietnam F2 | 2018/05/08 04:20 | Issei Okamura v Lucas Vuradin | 6-7,2-6 |
| ITF Vietnam F1 | 2018/04/30 04:45 | Issei Okamura v Rio Noguchi | 5-7,5-7 |
| ITF Japan F6 | 2018/04/10 03:10 | Kazuki Nishiwaki v Issei Okamura | 6-2,7-5 |
| ITF Japan F6 Qual | 2018/04/09 01:00 | Issei Okamura v Yuto Sakai | 6-2,6-3 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Issei Okamura v Hikaru Shiraishi | 6-4,6-3 |
| ITF Singapore F2 | 2018/05/24 03:00 | Collin Altamirano v Shintaro Imai | 6-2,6-2 |
| ITF Singapore F2 | 2018/05/23 02:00 | Clement Larriere v Shintaro Imai | 2-6,4-6 |
| ITF Singapore F2 | 2018/05/22 02:00 | Hao Yuan Ng v Shintaro Imai | 0-6,0-6 |
| ITF China F6 | 2018/05/18 02:00 | Shintaro Imai v Patrik Niklas-Salminen | 3-6,6-7 |
| ITF China F6 | 2018/05/16 02:00 | Shintaro Imai v Shi Hong Zeng | 6-3,6-1 |
| ITF China F6 | 2018/05/15 02:00 | Shintaro Imai v Chukang Wang | 6-3,6-2 |
| ITF China F5 | 2018/05/10 03:00 | Yuta Shimizu v Shintaro Imai | 6-4,4-6,7-5 |
| ITF China F5 | 2018/05/08 02:00 | Huixin Wang v Shintaro Imai | 3-6,1-6 |