Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Jinan, China | 2018/08/07 09:15 | Yusuke Takahashi v Ehara, Hiroyasu | 6-4,6-3 |
| Challenger Chengdu Qual | 2018/07/29 05:40 | Ehara, Hiroyasu v Blake Ellis | 3-6,3-6 |
| Challenger Chengdu Qual | 2018/07/28 08:05 | Ehara, Hiroyasu v Runhao Hua | 7-5,4-6,7-6 |
| Challenger Astana | 2018/07/17 06:05 | Ehara, Hiroyasu v Ivan Gakhov | 3-6,6-7 |
| ITF Guam F1 | 2018/06/23 00:00 | Ehara, Hiroyasu v Yuta Shimizu | 6-3,2-6,3-6 |
| ITF Guam F1 | 2018/06/22 00:00 | Ehara, Hiroyasu v Katayama, Sho | 7-6,6-4 |
| ITF Guam F1 | 2018/06/20 02:00 | Ehara, Hiroyasu v Shirafuji, Naru | 6-4,6-3 |
| ITF Guam F1 | 2018/06/18 02:10 | Ehara, Hiroyasu v Ren Nakamura | 6-4,6-4 |
| Segovia, Spain | 2018/07/31 09:40 | Nedelko, Ivan v Karim-Mohamed Maamoun | 6-3,6-4 |
| Challenger Segovia Qual | 2018/07/30 12:00 | Karim-Mohamed Maamoun v Enzo Couacaud | 6-4,6-2 |
| Challenger Segovia Qual | 2018/07/29 14:30 | Karim-Mohamed Maamoun v Nielsen, Frederik | 7-6,3-6,6-2 |
| Challenger Segovia Qual | 2018/07/28 12:20 | Karim-Mohamed Maamoun v Kanar, Jonathan | 6-3,6-4 |
| Challenger Padova Qual | 2018/07/21 15:00 | Karim-Mohamed Maamoun v Velotti, Agustin | 6-7,4-6 |
| ITF Nigeria F3 | 2018/05/03 10:15 | Moez Echargui v Karim-Mohamed Maamoun | 6-3,7-6 |
| ITF Nigeria F3 | 2018/05/02 11:10 | Jomby, Tom v Karim-Mohamed Maamoun | 4-6,1-6 |
| ITF Nigeria F3 | 2018/05/01 09:00 | Kazuma Kawachi v Karim-Mohamed Maamoun | 4-6,2-6 |