| ATP Den Bosch MD | 2017/06/13 16:25 | Koolhof/Middelkoop v Martin/Nestor | 1-6,7-6,9-11 |
| French Open MD | 2017/05/31 09:00 | Koolhof/Middelkoop v Jaziri/Seppi | 6-7,7-6,4-6 |
| ATP Geneva MD | 2017/05/22 10:00 | Rojer/Tecau v Koolhof/Middelkoop | 7-6,7-6 |
| Challenger Aix en Provence MD | 2017/05/13 13:55 | Begemann/Chardy v Koolhof/Middelkoop | 6-2,4-6,14-16 |
| Challenger Aix en Provence MD | 2017/05/12 11:00 | Duran/Molteni v Koolhof/Middelkoop | 6-4,4-6,5-10 |
| Challenger Aix en Provence MD | 2017/05/08 16:10 | Chazal/Tessa v Koolhof/Middelkoop | 2-6,1-6 |
| ATP Estoril MD | 2017/05/02 16:35 | Jaziri/Muller v Koolhof/Middelkoop | 4-6,6-3,11-9 |
| ATP Budapest MD | 2017/04/24 09:00 | Cabal/Farah v Koolhof/Middelkoop | 6-3,6-3 |