Stadium: Court 12 Round: 26 Ground: Hardcourt outdoor
| Challenger Busan MD | 2018/05/14 05:30 | Chen/Yi v Bury/Peng | 6-3,4-6,7-10 |
| Challenger Gimcheon MD | 2018/05/09 04:30 | Chen/Yi v Ratiwatana/Ratiwatana | 1-6,6-4,8-10 |
| Challenger Seoul MD | 2018/05/06 07:00 | Matsui/Nielsen v Chen/Yi | 6-4,7-6 |
| Challenger Seoul MD | 2018/05/05 03:00 | Bury/Peng v Chen/Yi | 4-6,6-7 |
| Challenger Seoul MD | 2018/05/04 08:25 | Wu/Zhang v Chen/Yi | 5-7,2-6 |
| Challenger Seoul MD | 2018/05/03 07:00 | Chen/Yi v Ratiwatana/Ratiwatana | 7-6,4-6,10-8 |
| Challenger Anning MD | 2018/04/26 06:10 | Chen/Yi v Reid/Whittington | 6-7,4-6 |
| Challenger Anning MD | 2018/04/23 05:05 | Chen/Yi v Safwat/Yang | 7-6,6-4 |
| Challenger Bastad MD | 2018/07/14 09:00 | Heliovaara/Laaksonen v Kolar/Oliveira | 6-4,6-3 |
| Challenger Bastad MD | 2018/07/13 13:30 | Peralta/Zeballos v Heliovaara/Laaksonen | 2-6,3-6 |
| Challenger Bastad MD | 2018/07/12 13:15 | Gong/Zhang v Heliovaara/Laaksonen | 4-6,4-6 |
| Challenger Bastad MD | 2018/07/10 13:35 | Bergevi/Figueroa v Heliovaara/Laaksonen | 2-6,1-6 |
| Challenger Blois MD | 2018/06/20 14:00 | Heliovaara/Laaksonen v Domingues/Sousa | 3-6,3-6 |