Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| Challenger Taipei MD | 2018/04/11 10:45 | Hsieh/Yang v Erlich/Nielsen | 6-7,6-7 |
| Challenger Taipei MD | 2018/04/11 08:10 | Ito/Matsui v Ratiwatana/Ratiwatana | 7-6,3-6,6-10 |
| Davis Cup | 2018/04/08 02:00 | Casey Alcantara/Arcilla v Ratiwatana/Ratiwatana | 6-4,6-7,1-6 |
| Challenger St Brieuc MD | 2018/03/30 10:00 | Arends/Weissborn v Ratiwatana/Ratiwatana | 6-4,6-3 |
| Challenger St Brieuc MD | 2018/03/29 12:00 | Safwat/Zopp v Ratiwatana/Ratiwatana | 1-6,1-6 |
| Challenger St Brieuc MD | 2018/03/28 13:55 | Ratiwatana/Ratiwatana v Nedunchezhiyan/Raja | 7-6,3-6,10-8 |
| Challenger Yokohama MD | 2018/03/03 04:05 | Ratiwatana/Ratiwatana v Kamke/Puetz | 6-3,5-7,10-12 |
| Challenger Yokohama MD | 2018/03/02 06:25 | Ratiwatana/Ratiwatana v Ito/Uesugi | 5-7,6-2,10-6 |
| Challenger Yokohama MD | 2018/02/28 05:10 | Ratiwatana/Ratiwatana v Purcell/Whittington | 6-3,7-5 |