Stadium: Centre Court Round: 28 Ground: Hardcourt outdoor
| Challenger Gimcheon MD | 2018/05/12 06:20 | Roelofse/Smith v Ratiwatana/Ratiwatana | 6-2,6-3 |
| Challenger Busan MD | 2018/05/18 06:55 | Roelofse/Smith v Gong/Zhang | 3-6,6-1,16-14 |
| Challenger Busan MD | 2018/05/17 07:30 | Roelofse/Smith v Kim/Lim | 6-4,6-4 |
| Challenger Gimcheon MD | 2018/05/12 06:20 | Roelofse/Smith v Ratiwatana/Ratiwatana | 6-2,6-3 |
| Challenger Gimcheon MD | 2018/05/09 04:45 | Roelofse/Smith v Wu/Zhang | 6-2,6-3 |
| Challenger Gimcheon MD | 2018/05/07 07:40 | Roelofse/Smith v Gong/Uchiyama | 7-6,7-5 |
| Challenger Busan MD | 2018/05/18 02:00 | Ratiwatana/Ratiwatana v Gonzales/Schnur | 6-2,6-4 |
| Challenger Busan MD | 2018/05/15 07:10 | Ratiwatana/Ratiwatana v Matsui/Statham | 6-1,6-2 |
| Challenger Gimcheon MD | 2018/05/12 06:20 | Roelofse/Smith v Ratiwatana/Ratiwatana | 6-2,6-3 |
| Challenger Gimcheon MD | 2018/05/11 05:30 | Ratiwatana/Ratiwatana v Bury/Peng | 3-6,6-3,10-4 |
| Challenger Gimcheon MD | 2018/05/10 07:20 | Purcell/Saville v Ratiwatana/Ratiwatana | 1-6,4-6 |
| Challenger Gimcheon MD | 2018/05/09 04:30 | Chen/Yi v Ratiwatana/Ratiwatana | 1-6,6-4,8-10 |
| Challenger Seoul MD | 2018/05/03 07:00 | Chen/Yi v Ratiwatana/Ratiwatana | 7-6,4-6,10-8 |
| Challenger Taipei MD | 2018/04/13 10:50 | Ebden/Whittington v Ratiwatana/Ratiwatana | 6-3,6-4 |