Stadium: Court 12 Round: 24 Ground: Hardcourt outdoor
| Wimbledon MD | 2021/07/01 10:00 | Gille/Vliegen v Marach/Qureshi | 4-6,4-6 |
| ATP Halle MD | 2021/06/18 12:00 | Krawietz/Tecau v Gille/Vliegen | 7-6,7-5 |
| ATP Halle MD | 2021/06/17 13:45 | Gille/Vliegen v Bopanna/Sharan | 6-3,7-6 |
| ATP Halle MD | 2021/06/16 14:45 | Gille/Vliegen v Saville/Thompson | 7-6,6-3 |
| French Open MD | 2021/06/06 09:00 | Andujar/Martinez v Gille/Vliegen | 6-4,7-6 |
| French Open MD | 2021/06/04 09:00 | Krajicek/Sandgren v Gille/Vliegen | 4-6,1-6 |
| French Open MD | 2021/06/02 10:25 | Sonego/Vavassori v Gille/Vliegen | 4-6,4-6 |
| ATP Parma MD | 2021/05/26 09:00 | Gille/Vliegen v Passaro/Travaglia | 7-6,6-4 |