Stadium: Court 3 Round: 27 Ground: Hardcourt outdoor
| Challenger Kaohsiung | 2018/09/20 10:00 | Jason Jung v Duckhee Lee | 6-7,4-6 |
| Challenger Kaohsiung | 2018/09/19 08:50 | Tomislav Brkic v Duckhee Lee | 2-6,6-7 |
| Davis Cup | 2018/09/15 03:35 | Duckhee Lee v Rubin Statham | 6-4,6-1 |
| Davis Cup | 2018/09/14 04:05 | Duckhee Lee v Michael Venus | 7-5,6-7,6-2 |
| Challenger Zhangjiagang | 2018/09/06 04:20 | Uladzimir Ignatik v Duckhee Lee | 7-6,6-1 |
| Challenger Zhangjiagang | 2018/09/04 07:30 | Duckhee Lee v Ze Zhang | 6-3,5-7,6-0 |
| Challenger Gwangju | 2018/08/17 02:00 | Duckhee Lee v Makoto Ochi | 2-6,1-6 |
| Challenger Gwangju | 2018/08/15 06:00 | Duckhee Lee v Rubin Statham | 6-4,6-3 |
| Challenger Gwangju | 2018/08/15 06:00 | Renta Tokuda v Roman Safiullin | 7-6,6-2 |
| Challenger Gwangju | 2018/08/13 06:30 | Renta Tokuda v Mukund Sasikumar | 3-6,6-2,6-3 |
| Challenger Jinan | 2018/08/06 09:15 | Roman Safiullin v Renta Tokuda | 6-3,7-6 |
| Challenger Chengdu | 2018/07/31 07:50 | Renta Tokuda v Tak Khunn Wang | 2-6,2-6 |
| Challenger Granby | 2018/07/26 16:00 | Joris De Loore v Renta Tokuda | 6-1,7-5 |
| Challenger Granby | 2018/07/25 14:00 | Pavel Krainik v Renta Tokuda | 3-6,3-6 |
| Challenger Gatineau | 2018/07/17 18:00 | Renta Tokuda v Edan Leshem | 6-4,6-7,6-3 |
| Challenger Winnipeg | 2018/07/11 15:00 | Renta Tokuda v Kaichi Uchida | 5-7,5-7 |