Stadium: Court 1 Round: 26 Ground: Hardcourt indoor
| Challenger Szczecin MD | 2017/09/16 17:00 | Koolhof W / Sitak A v Bury A / Siljestrom A | 6-1,7-5 |
| Challenger Szczecin MD | 2017/09/15 11:00 | Koolhof W / Sitak A v Motti A / Oliveira G | 6-4,6-3 |
| Challenger Szczecin MD | 2017/09/14 14:00 | Koolhof W / Sitak A v Bednarek T / Pel D | 7-5,3-6,10-4 |
| Challenger Szczecin MD | 2017/09/13 12:00 | Koolhof W / Sitak A v Andreozzi G / Behar A | 7-5,6-4 |
| US Open MD | 2017/08/31 15:00 | Koolhof W / Sitak A v Dodig I / Granollers M | 6-7,3-6 |
| Challenger Aptos MD | 2017/08/12 23:15 | Koolhof W / Sitak A v 볼트 알 / 톰프슨 조 | 3-6,6-2,8-10 |
| Challenger Aptos MD | 2017/08/10 23:00 | Koolhof W / Sitak A v Krajicek A / Withrow J | 6-4,7-6 |
| ATP Los Cabos MD | 2017/08/04 00:00 | Koolhof W / Sitak A v Raja P / Sharan D | 3-6,4-6 |