Stadium: Carrasco Lawn Tennis Club Round: 3
| ATP Halle MD | 2019/06/19 11:55 | Kubot/Melo v Koolhof/Middelkoop | 6-3,6-2 |
| Wimbledon MD | 2017/07/05 16:20 | Kubot/Melo v Koolhof/Middelkoop | 6-4,6-0,6-3 |
| ATP Antalya MD | 2017/06/27 15:35 | Koolhof/Middelkoop v Paes/Shamasdin | 6-3,5-7,9-11 |
| ATP Halle Qual MD | 2017/06/17 14:34 | Haase/Tomic v Koolhof/Middelkoop | 7-6,6-5 |
| 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 |