| Challenger Helsinki MD | 11/15 16:50 | 26 | Stalder/Tsitsipas v Marterer/Sachko | 6-3,6-3 | |
| Challenger Eckental MD | 11/03 13:30 | 26 | Marterer/Sachko v 코즈비노브 알 / 크레시 맥 | 6-2,3-6,7-10 | |
| Challenger Ismaning MD | 10/28 17:35 | 27 | Marterer/Sachko v Begemann/Zelenay | 4-6,6-7 | |
| Challenger Ismaning MD | 10/27 16:15 | 26 | Florig/Rehberg v Marterer/Sachko | 4-6,3-6 |