Stadium: Court 4 Round: 26 Ground: Clay
| ATP Rotterdam MD | 2021/03/03 13:30 | Chardy/Martin v Koolhof/Kubot | 6-4,6-3 |
| ATP Rotterdam MD | 2021/03/02 10:00 | Mclachlan/Nishikori v Koolhof/Kubot | 5-7,6-3,6-10 |
| Australian Open MD | 2021/02/15 06:55 | Ebden/Smith v Koolhof/Kubot | 7-6,6-4 |
| Australian Open MD | 2021/02/14 05:15 | Kokkinakis/Kyrgios v Koolhof/Kubot | 3-6,4-6 |
| Australian Open MD | 2021/02/11 00:00 | Behar/Escobar v Koolhof/Kubot | 3-6,4-6 |
| ATP Murray River Open MD | 2021/02/06 06:45 | Chardy/Martin v Koolhof/Kubot | 7-6,6-3 |
| ATP Murray River Open MD | 2021/02/05 08:30 | Albot/Gerasimov v Koolhof/Kubot | 2-6,6-3,7-10 |
| ATP Cincinnati MD | 2019/08/15 20:20 | Demoliner/Medvedev v Pavic/Soares | 5-7,6-7 |
| ATP Cincinnati MD | 2019/08/14 20:55 | Demoliner/Medvedev v Haase/Koolhof | 7-5,1-6,10-6 |
| ATP Madrid MD | 2019/05/09 10:00 | Carballes Baena/Munar v Demoliner/Medvedev | 6-7,5-7 |
| ATP Madrid MD | 2019/05/07 14:40 | Demoliner/Medvedev v Lajovic/Middelkoop | 6-4,7-6 |
| ATP Monte Carlo MD | 2019/04/18 12:30 | Demoliner/Medvedev v Cabal/Farah | 6-2,6-4 |
| ATP Monte Carlo MD | 2019/04/16 11:15 | Goffin/Pouille v Demoliner/Medvedev | 5-7,3-6 |
| ATP Brisbane MD | 2019/01/01 04:05 | Millman/Smith v Demoliner/Medvedev | 6-7,6-4,10-4 |