stadio: Center Court Round: 27 Ground: Hardcourt outdoor
| Challenger Gwangju | 2018/08/15 06:00 | Duckhee Lee v Rubin Statham | 6-4,6-3 |
| Challenger Gwangju | 2018/08/14 06:30 | Duckhee Lee v Hong Chung | 7-6,6-2 |
| Challenger Jinan | 2018/08/10 07:30 | James Ward v Duckhee Lee | 3-6,7-5,6-4 |
| Challenger Jinan | 2018/08/08 12:40 | Duckhee Lee v Yibing Wu | 6-0,6-3 |
| Challenger Jinan | 2018/08/07 02:00 | Manish Sureshkumar v Duckhee Lee | 1-6,3-6 |
| Challenger Chengdu | 2018/08/02 08:05 | Duckhee Lee v James Ward | 6-4,5-7,3-6 |
| Challenger Chengdu | 2018/07/31 06:05 | Nikola Milojevic v Duckhee Lee | 4-6,4-6 |
| Challenger Astana | 2018/07/19 07:50 | Duckhee Lee v Pavel Kotov | 7-5,6-7,5-7 |
| Challenger Gwangju | 2018/08/15 07:50 | Makoto Ochi v Blake Ellis | 7-5,6-1 |
| Challenger Gwangju | 2018/08/13 08:40 | Lucas Catarina v Makoto Ochi | 3-6,2-6 |
| Challenger Jinan | 2018/08/04 07:30 | Makoto Ochi v Tak Khunn Wang | 0-6,0-6 |
| Challenger Chengdu | 2018/07/31 03:00 | Makoto Ochi v Alexander Bublik | 2-6,5-7 |
| Challenger Chengdu - Qual. | 2018/07/29 03:00 | Manish Sureshkumar v Makoto Ochi | 4-6,6-2,3-6 |
| Challenger Chengdu - Qual. | 2018/07/28 05:45 | Sami Reinwein v Makoto Ochi | 5-7,2-6 |
| Challenger Granby - Qual. | 2018/07/23 21:00 | Wishaya Trongcharoenchaikul v Makoto Ochi | 6-3,3-6,6-3 |
| Challenger Granby - Qual. | 2018/07/23 02:10 | Borna Gojo v Makoto Ochi | 1-6,1-6 |