Stadium: Court 11 Round: 25 Ground: Hardcourt outdoor
| US Open MD | 2021/09/03 17:00 | Gille/Vliegen v Ivashka/Munar | 6-3,6-3 |
| ATP Winston-Salem MD | 2021/08/23 20:40 | Marach/Oswald v Gille/Vliegen | 7-6,5-7,10-4 |
| ATP Cincinnati MD | 2021/08/18 15:00 | Gille/Vliegen v Koolhof/Struff | 4-6,6-7 |
| ATP Toronto MD | 2021/08/14 22:00 | Ram/Salisbury v Gille/Vliegen | 6-3,7-5 |
| ATP Toronto MD | 2021/08/13 21:55 | Gille/Vliegen v Cabal/Farah | 6-7,6-2,10-8 |
| ATP Toronto MD | 2021/08/12 16:20 | Gille/Vliegen v Koolhof/Krajicek | 7-6,2-6,10-8 |
| ATP Toronto MD | 2021/08/11 16:30 | Puetz/Venus v Gille/Vliegen | 5-7,6-7 |
| ATP Washington MD | 2021/08/02 22:25 | Norrie/Saville v Gille/Vliegen | 6-4,6-4 |
| US Open MD | 2021/09/02 21:55 | O'Mara/Qureshi v Behar/Escobar | 6-3,3-6,6-3 |
| ATP Marseille MD | 2021/03/11 13:30 | Arends/Pel v O'Mara/Qureshi | 6-4,7-6 |
| ATP Marseille MD | 2021/03/10 10:45 | Reyes-Varela/Romboli v O'Mara/Qureshi | 6-7,2-6 |