Stadium: Court 10 Round: 27 Ground: Hardcourt outdoor
| ATP New York MD | 2020/08/24 18:40 | Koolhof W / Mektic N v Evans/Goffin | 7-5,6-1 |
| ATP New York MD | 2020/08/22 18:45 | Koolhof W / Mektic N v 카차노브 카 / 루블레브 안 | 6-4,6-2 |
| ATP Dubai MD | 2020/02/27 11:00 | Koolhof W / Mektic N v Klaasen R / Marach O | 5-7,4-6 |
| ATP Dubai MD | 2020/02/25 14:35 | AL Janahi A / AL Janahi F v Koolhof W / Mektic N | 0-6,1-6 |
| ATP Marseille MD | 2020/02/23 10:45 | 마헛 니 / 포스피실 바 v Koolhof W / Mektic N | 6-3,6-4 |
| ATP Marseille MD | 2020/02/21 12:00 | 니엘센 F / 푸에츠 T v Koolhof W / Mektic N | 4-6,2-6 |
| ATP Marseille MD | 2020/02/19 12:35 | Erlich J / Vasilevski A v Koolhof W / Mektic N | 3-6,5-7 |
| ATP Marseille MD | 2020/02/17 15:50 | 블키크 토 / 실리크 마 v Koolhof W / Mektic N | 5-7,6-1,10-12 |
| ATP New York MD | 2020/08/24 22:00 | 후르카즈 H / 이스넬 J v Carreno-Busta/De Minaur | 6-7,5-7 |
| ATP New York MD | 2020/08/23 15:00 | Carreno-Busta/De Minaur v 도디그 I / 폴라세크 F | 3-6,7-6,10-5 |