Round: 26 Ground: Clay
| Challenger Fairfield MD | 2018/10/14 19:00 | Ratiwatana Sa / Rungkat C v 헬리오바라 하 / 라크소넨 헨 | 6-0,7-6 |
| Challenger Fairfield MD | 2018/10/13 01:00 | Ratiwatana Sa / Rungkat C v 후에슬러 M-A / 베르비크 S | 6-4,6-4 |
| Challenger Fairfield MD | 2018/10/12 01:00 | Ratiwatana Sa / Rungkat C v 존슨 A / 존슨 R | 6-4,5-7,10-6 |
| Challenger Fairfield MD | 2018/10/11 01:25 | Ratiwatana Sa / Rungkat C v Kokkinakis T / Reid M | 6-3,6-4 |
| Challenger Stockton MD | 2018/10/06 21:30 | Ratiwatana Sa / Rungkat C v 킹 D / 루빈 N | 3-6,4-6 |
| Challenger Stockton MD | 2018/10/05 22:10 | Ratiwatana Sa / Rungkat C v Matsui T / Nielsen F | 5-7,6-1,10-8 |
| Challenger Stockton MD | 2018/10/04 20:55 | Ratiwatana Sa / Rungkat C v Fruttero J P / Kypson P | 6-4,6-2 |
| Challenger Stockton MD | 2018/10/01 23:25 | Ratiwatana Sa / Rungkat C v Paul/Reed | 6-3,6-3 |