Stadium: Court 4 Round: 25 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 USA F23 | 2018/08/16 14:00 | Felix Corwin v Sekou Bangoura | 4-6,6-7 |
| ITF USA F23 Qual | 2018/08/13 14:00 | Alejandro Gomez v Felix Corwin | 6-4,6-2 |
| ITF USA F19B | 2018/07/19 17:00 | Evgeny Karlovskiy v Felix Corwin | 6-1,6-4 |
| ITF USA F19B | 2018/07/18 16:50 | Felix Corwin v Aleksandar Kovacevic | 6-3,6-3 |
| ITF USA F19B Qual | 2018/07/16 15:00 | Felix Corwin v Matic Spec | 3-6,7-6,6-4 |
| ITF USA F19B Qual | 2018/07/15 15:00 | Felix Corwin v Toby D. Boyer | 6-2,6-4 |
| ITF USA F19B Qual | 2018/07/14 18:30 | Felix Corwin v Austin Rapp | 6-1,6-3 |
| Challenger Winnetka Qual | 2018/07/07 16:30 | Peter Kobelt v Felix Corwin | 6-3,6-2 |