Stadium: Court 1 Round: 26 Ground: Clay
| ATP Estoril MD | 2018/05/03 16:50 | Mayer/Sousa v Haase/Middelkoop | 6-2,6-4 |
| ATP Estoril MD | 2018/05/02 12:40 | Haase/Middelkoop v Demoliner/Gonzalez | 6-4,6-4 |
| ATP Marrakech MD | 2018/04/11 14:10 | Cerretani/Qureshi v Haase/Middelkoop | 6-3,3-6,10-3 |
| ATP Miami MD | 2018/03/22 16:40 | Haase/Middelkoop v Kontinen/Peers | 3-6,6-3,6-10 |
| ATP Dubai MD | 2018/03/01 15:15 | Haase/Middelkoop v Dodig/Ram | 3-6,6-7 |
| ATP Dubai MD | 2018/02/27 12:15 | Struff/Troicki v Haase/Middelkoop | 4-6,4-6 |
| ATP Rotterdam MD | 2018/02/14 15:20 | Haase/Middelkoop v Rojer/Tecau | 1-6,2-6 |
| ATP Rotterdam MD | 2018/02/13 16:40 | Haase/Middelkoop v Smit/Timmermans | 6-2,6-4 |