Stadium: Court 1 Round: 26 Ground: Clay
| ATP Miami MD | 2021/03/25 20:30 | Auger Aliassime/Hurkacz v Gille/Vliegen | 6-4,6-3 |
| ATP Rotterdam MD | 2021/03/03 16:10 | Gille/Vliegen v Tsitsipas/Tsitsipas | 2-6,3-6 |
| ATP Singapore MD | 2021/02/28 05:00 | Gille/Vliegen v Ebden/Smith | 6-2,6-3 |
| ATP Singapore MD | 2021/02/26 04:00 | Gille/Vliegen v Bambridge/Inglot | 6-4,6-4 |
| ATP Singapore MD | 2021/02/25 04:00 | Gille/Vliegen v Raja/Ramanathan | 6-4,7-6 |
| ATP Singapore MD | 2021/02/23 08:25 | Gille/Vliegen v King/Reese | 7-6,6-3 |
| Australian Open MD | 2021/02/11 04:35 | Koepfer/Sandgren v Gille/Vliegen | 6-7,6-2,7-6 |
| ATP Murray River Open MD | 2021/02/06 01:40 | Mektic/Pavic v Gille/Vliegen | 7-6,3-6,10-6 |
| Challenger Marbella MD | 2021/04/01 15:35 | Marrero/Menendez-Maceiras v Gomez-Herrera/Vilella Martinez | 0-6,6-7 |
| Challenger Marbella MD | 2021/03/31 12:20 | Goransson/Vasilevski v Marrero/Menendez-Maceiras | 6-7,6-4,5-10 |
| Challenger Lugano MD | 2021/03/23 16:10 | Marrero/Menendez-Maceiras v Molchanov/Stakhovsky | 6-4,4-6,4-10 |
| Challenger Biella MD | 2021/03/18 11:00 | Bonzi/Nys v Marrero/Menendez-Maceiras | 6-4,6-2 |
| Challenger Biella MD | 2021/03/17 13:05 | Marrero/Menendez-Maceiras v Pasha/Schnur | 7-6,6-7,10-8 |