| Challenger Portoroz MD | 08/08 17:35 | 26 | Podlipnik-Castillo/Vasilevski v Kovalik/Tsitsipas | 7-6,6-2 | |
| Challenger Scheveningen MD | 07/23 15:15 | 29 | Kovalik/Tsitsipas v Gille/Vliegen | 2-6,6-4,10-12 | |
| Challenger Scheveningen MD | 07/22 14:00 | 28 | Kovalik/Tsitsipas v Bemelmans/De Loore | Walkover | |
| Challenger Scheveningen MD | 07/20 13:55 | 27 | Kovalik/Tsitsipas v Daniel/Stakhovsky | 7-5,7-5 | |
| Challenger Scheveningen MD | 07/19 16:55 | 26 | Krawietz/Kretschmer v Kovalik/Tsitsipas | 6-1,3-6,11-13 |