Stadium: Ct 3 Round: 28 Ground: Hardcourt outdoor
| Challenger Gwangju | 2018/08/14 08:25 | Hiroyasu Ehara v Karim-Mohamed Maamoun | 1-6,6-7 |
| Challenger Jinan | 2018/08/07 09:15 | Yusuke Takahashi v Hiroyasu Ehara | 6-4,6-3 |
| Challenger Chengdu Qual | 2018/07/29 05:40 | Hiroyasu Ehara v Blake Ellis | 3-6,3-6 |
| Challenger Chengdu Qual | 2018/07/28 08:05 | Hiroyasu Ehara v Runhao Hua | 7-5,4-6,7-6 |
| Challenger Astana | 2018/07/17 06:05 | Hiroyasu Ehara v Ivan Gakhov | 3-6,6-7 |
| ITF Guam F1 | 2018/06/23 00:00 | Hiroyasu Ehara v Yuta Shimizu | 6-3,2-6,3-6 |
| ITF Guam F1 | 2018/06/22 00:00 | Hiroyasu Ehara v Sho Katayama | 7-6,6-4 |
| ITF Guam F1 | 2018/06/20 02:00 | Hiroyasu Ehara v Naru Shirafuji | 6-4,6-3 |
| ITF Belgium F8 | 2018/08/14 09:00 | Michael Geerts v Colin Sinclair | 6-4,5-7,6-2 |
| ITF Belgium F7 | 2018/08/06 14:30 | Loic Cloes v Colin Sinclair | 7-5,7-5 |
| ITF Belgium F6 | 2018/08/04 13:00 | Colin Sinclair v Maxime Chazal | 2-6,6-4,3-6 |
| ITF Belgium F6 | 2018/08/03 11:40 | Colin Sinclair v Loic Cloes | 6-3,6-1 |
| ITF Belgium F6 | 2018/08/02 13:20 | Clement Geens v Colin Sinclair | 3-6,6-7 |
| ITF Belgium F5 | 2018/07/25 12:10 | Maxime Pauwels v Colin Sinclair | 7-6,4-6,6-4 |
| ITF Belgium F5 | 2018/07/24 14:00 | Colin Sinclair v Gabriel Donev | 6-3,6-4 |
| ITF Belgium F4 | 2018/07/18 12:55 | Jeremy Sonkin v Colin Sinclair | 7-6,7-5 |