Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| ATP Cincinnati MD | 2021/08/16 17:30 | Behar/Escobar v Klaasen/Mclachlan | 4-6,6-3,10-8 |
| ATP St Petersburg MD | 2021/10/25 12:40 | Bopanna/Shapovalov v Klaasen/Mclachlan | 7-5,6-4 |
| ATP Moscow MD | 2021/10/20 10:20 | Klaasen/Mclachlan v Bopanna/Qureshi | 2-6,4-6 |
| ATP Indian Wells MD | 2021/10/11 02:15 | Klaasen/Mclachlan v Arevalo/Middelkoop | 2-6,6-0,9-11 |
| US Open MD | 2021/09/04 15:00 | Klaasen/Mclachlan v Gonzalez/Molteni | 1-6,6-3,6-7 |
| US Open MD | 2021/09/03 00:15 | Klaasen/Mclachlan v Krueger/Mmoh | 6-4,6-7,7-6 |
| ATP Winston-Salem MD | 2021/08/24 01:20 | Klaasen/Mclachlan v Daniell/Demoliner | 3-6,6-4,4-10 |
| ATP Cincinnati MD | 2021/08/16 17:30 | Behar/Escobar v Klaasen/Mclachlan | 4-6,6-3,10-8 |
| ATP Toronto MD | 2021/08/11 19:40 | Klaasen/Mclachlan v Koolhof/Krajicek | 4-6,6-7 |
| ATP St Petersburg MD | 2021/10/27 13:20 | Behar/Escobar v Fritz/Paul | 4-6,5-7 |
| ATP Moscow MD | 2021/10/23 09:00 | Heliovaara/Middelkoop v Behar/Escobar | 6-7,6-3,10-8 |
| ATP Moscow MD | 2021/10/22 10:10 | Behar/Escobar v Gonzalez/Molteni | 7-5,3-6,10-7 |
| ATP Moscow MD | 2021/10/20 15:00 | Daniell/Demoliner v Behar/Escobar | 3-6,7-6,7-10 |
| ATP Indian Wells MD | 2021/10/10 20:00 | Behar/Escobar v Peers/Polasek | 5-7,7-6,7-10 |
| ATP San Diego MD | 2021/09/27 18:30 | Salisbury/Skupski v Behar/Escobar | 2-6,7-6,10-5 |
| US Open MD | 2021/09/02 21:55 | O'Mara/Qureshi v Behar/Escobar | 6-3,3-6,6-3 |
| ATP Winston-Salem MD | 2021/08/23 23:10 | Behar/Escobar v Skupski/Skupski | 6-4,6-7,5-10 |