Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| Challenger Busan Qual | 2018/05/13 03:25 | Ehara, Hiroyasu v Blake Ellis | 6-7,6-3,3-6 |
| Challenger Gimcheon Qual | 2018/05/06 04:30 | Ehara, Hiroyasu v Makoto Ochi | 7-6,3-6,4-6 |
| ITF Japan F6 | 2018/04/15 04:00 | Ehara, Hiroyasu v Renta Tokuda | 0-6,6-7 |
| ITF Japan F6 | 2018/04/14 01:00 | Kazuki Nishiwaki v Ehara, Hiroyasu | 2-6,6-7 |
| ITF Japan F6 | 2018/04/13 01:00 | Ehara, Hiroyasu v Sora Fukuda | 7-6,6-2 |
| ITF Japan F6 | 2018/04/12 01:00 | Ehara, Hiroyasu v Yuta Shimizu | 5-7,7-6,6-1 |
| ITF Japan F6 Qual | 2018/04/11 01:00 | Ehara, Hiroyasu v Nakashima, Hajime | 6-1,6-2 |
| ITF Japan F5 | 2018/04/05 02:00 | Shintaro Imai v Ehara, Hiroyasu | 3-6,5-7 |
| ITF China F5 | 2018/05/10 04:50 | Jie Cui v Frawley, James | 7-5,4-6,6-4 |
| ITF China F5 | 2018/05/08 03:55 | Takeuchi, Kento (1987) v Jie Cui | 1-6,6-3,3-6 |
| ITF China F4 | 2018/05/03 03:00 | Yuta Shimizu v Jie Cui | 4-6,6-4,6-1 |
| ITF China F4 | 2018/05/01 02:00 | Jie Cui v Tsung-Hao Huang | 6-3,6-1 |
| ITF Japan F6 Qual | 2018/04/09 02:15 | Jie Cui v Kawakami, Rimpei | 1-6,4-6 |
| ITF Japan F6 Qual | 2018/04/08 04:00 | Jie Cui v Kousuke Ogura | 6-4,6-2 |
| ITF Japan F5 | 2018/04/01 00:30 | Shinji Hazawa v Jie Cui | 5-7,6-2,7-6 |
| Challenger Qujing | 2018/03/20 04:05 | Jie Cui v Ilya Ivashka | 1-6,1-6 |