Round: 26 Ground: Clay
| Challenger Bordeaux MD | 2018/05/20 10:45 | Klahn/Polansky v Duran/Gonzalez | 6-3,3-6,10-7 |
| Challenger Bordeaux MD | 2018/05/16 14:00 | Albot/Kozlov v Klahn/Polansky | 2-6,4-6 |
| Challenger Bordeaux MD | 2018/05/15 13:00 | Klahn/Polansky v Bonzi/Jacq | 6-3,6-4 |
| Challenger Aix en Provence MD | 2018/05/11 15:00 | Klahn/Polansky v Andreozzi/de Schepper | 1-6,6-0,8-10 |
| Challenger Aix en Provence MD | 2018/05/10 10:00 | Eysseric/Salisbury v Klahn/Polansky | 6-7,4-6 |
| Challenger Aix en Provence MD | 2018/05/09 12:40 | Klahn/Polansky v Hemery/Muller | 7-5,7-5 |
| Challenger Shanghai MD | 2017/09/17 03:00 | Klahn/Polansky v Matsui/Yi | 6-7,6-4,5-10 |
| Challenger Shanghai MD | 2017/09/15 04:00 | Cerretani/Polmans v Klahn/Polansky | 6-3,6-7,7-10 |