Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ATP - Dubai - Dublu Masculin | 2020/02/25 14:35 | Al Janahi/Al Janahi v Koolhof/Mektic | 0-6,1-6 |
| ATP - Marseille - Dublu Masculin | 2020/02/23 10:45 | Mahut/Pospisil v Koolhof/Mektic | 6-3,6-4 |
| ATP - Marseille - Dublu Masculin | 2020/02/21 12:00 | Nielsen/Puetz v Koolhof/Mektic | 4-6,2-6 |
| ATP - Marseille - Dublu Masculin | 2020/02/19 12:35 | Erlich/Vasilevski v Koolhof/Mektic | 3-6,5-7 |
| ATP - Marseille - Dublu Masculin | 2020/02/17 15:50 | Brkic/Čilić v Koolhof/Mektic | 5-7,6-1,10-12 |
| ATP - Rotterdam - Dublu Masculin | 2020/02/10 10:00 | Auger Aliassime/Hurkacz v Koolhof/Mektic | 6-3,7-6 |
| Australian Open - Dublu Masculin | 2020/01/25 00:00 | Duckworth/Polmans v Koolhof/Mektic | 7-5,6-3 |
| Australian Open - Dublu Masculin | 2020/01/22 05:00 | Cecchinato/Djere v Koolhof/Mektic | 3-6,6-7 |
| ATP - Dubai - Dublu Masculin | 2020/02/25 11:35 | Khachanov/Rublev v Klaasen/Marach | 6-7,3-6 |
| ATP - Rotterdam - Dublu Masculin | 2020/02/15 12:00 | Klaasen/Marach v Herbert/Mahut | 7-6,6-7,7-10 |
| ATP - Rotterdam - Dublu Masculin | 2020/02/13 14:00 | Klaasen/Marach v Auger Aliassime/Hurkacz | 6-4,6-7,10-8 |
| ATP - Rotterdam - Dublu Masculin | 2020/02/12 15:45 | Klaasen/Marach v Arends/Pel | 6-3,7-5 |
| Australian Open - Dublu Masculin | 2020/01/24 02:50 | Molteni/Nys v Klaasen/Marach | 6-7,6-3,6-4 |
| Australian Open - Dublu Masculin | 2020/01/22 06:50 | Kecmanovic/Ruud v Klaasen/Marach | 2-6,6-4,3-6 |
| ATP - Adelaide - Dublu Masculin | 2020/01/13 02:10 | Klaasen/Marach v Kubot/Melo | 2-6,4-6 |