Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ATP New York MD | 2020/08/26 16:40 | Koolhof/Mektic v Carreno-Busta/De Minaur | 5-7,7-6,7-10 |
| ATP New York MD | 2020/08/24 18:40 | Koolhof/Mektic v Evans/Goffin | 7-5,6-1 |
| ATP New York MD | 2020/08/22 18:45 | Koolhof/Mektic v Khachanov/Rublev | 6-4,6-2 |
| ATP Dubai MD | 2020/02/27 11:00 | Koolhof/Mektic v Klaasen/Marach | 5-7,4-6 |
| ATP Dubai MD | 2020/02/25 14:35 | Al Janahi/Al Janahi v Koolhof/Mektic | 0-6,1-6 |
| ATP Marseille MD | 2020/02/23 10:45 | Mahut/Pospisil v Koolhof/Mektic | 6-3,6-4 |
| ATP Marseille MD | 2020/02/21 12:00 | Nielsen/Puetz v Koolhof/Mektic | 4-6,2-6 |
| ATP Marseille MD | 2020/02/19 12:35 | Erlich/Vasilevski v Koolhof/Mektic | 3-6,5-7 |