stadio: Court 7 Round: 24 Ground: Grass
| ATP Halle DM | 2021/06/17 10:35 | Koolhof/Rojer v Auger Aliassime/Hurkacz | 6-7,3-6 |
| Open di Francia DM | 2021/06/05 12:25 | Koolhof/Rojer v Bublik/Golubev | 6-7,6-3,4-6 |
| Open di Francia DM | 2021/06/04 11:25 | Koolhof/Rojer v Koepfer/Ruusuvuori | 6-4,7-6 |
| Open di Francia DM | 2021/06/01 12:45 | Koolhof/Rojer v Krajinovic/Lajovic | 6-4,4-6,6-2 |
| ATP Roma DM | 2021/05/14 08:00 | Arevalo/Middelkoop v Koolhof/Rojer | 2-6,7-6,10-5 |
| ATP Roma DM | 2021/05/13 08:00 | Behar/Escobar v Koolhof/Rojer | 6-4,3-6,8-10 |
| ATP Roma DM | 2021/05/11 11:40 | Cecchinato/Travaglia v Koolhof/Rojer | 6-4,1-6,7-10 |
| Coppa Davis | 2019/11/20 16:05 | Murray/Skupski v Koolhof/Rojer | 6-4,7-6 |
| ATP Eastbourne DM | 2021/06/24 13:45 | Mektic/Pavic v Glasspool/Heliovaara | 6-4,6-7,18-16 |
| ATP Eastbourne DM | 2021/06/23 14:00 | Purcell/Saville v Glasspool/Heliovaara | 2-6,3-6 |
| Challenger Nottingham DM | 2021/06/10 11:35 | Glasspool/Heliovaara v Ebden/Smith | 4-6,2-6 |
| Challenger Nottingham DM | 2021/06/09 10:00 | Glasspool/Heliovaara v Gray/Parker | 6-2,6-3 |
| Challenger Roma DM | 2021/04/22 10:45 | Galloway/Lawson v Glasspool/Heliovaara | 6-7,6-3,10-8 |
| Challenger Belgrado DM | 2021/04/14 13:35 | Glasspool/Heliovaara v Sitak/Vega Hernandez | 6-2,4-6,5-10 |
| ATP Marsiglia DM | 2021/03/14 10:45 | Glasspool/Heliovaara v Arends/Pel | 7-5,7-6 |
| ATP Marsiglia DM | 2021/03/13 17:10 | Glasspool/Heliovaara v Ebden/Reid | 6-2,6-3 |