Stadium: Court 2 Round: 27 Ground: Hardcourt indoor
| ATP Moskwa - MD | 2021/10/18 11:00 | Brkic/Cacic v Bublik/Mannarino | 6-2,6-1 |
| ATP Sofia - MD | 2021/10/01 09:00 | Gonzalez/Molteni v Brkic/Cacic | 6-7,6-2,10-4 |
| ATP Sofia - MD | 2021/09/29 10:40 | Golubev/Nedovyesov v Brkic/Cacic | 3-6,7-6,7-10 |
| ATP Metz - MD | 2021/09/24 13:35 | Nys/Rinderknech v Brkic/Cacic | 6-3,7-6 |
| ATP Metz - MD | 2021/09/23 14:10 | Reese/Verbeek v Brkic/Cacic | 3-6,3-6 |
| ATP Metz - MD | 2021/09/22 10:00 | Giron/Olivetti v Brkic/Cacic | 4-6,7-6,1-10 |
| US Open - MD | 2021/09/04 19:20 | Golubev/Mies v Brkic/Cacic | 7-5,6-2 |
| US Open - MD | 2021/09/02 20:45 | Cuevas/Mannarino v Brkic/Cacic | 7-6,2-6,4-6 |
| ATP Moskwa - MD | 2021/10/18 10:00 | Kotov/Safiullin v Inglot/Skupski | 3-6,4-6 |
| Challenger Irving MD | 2018/03/14 19:00 | Inglot/Skupski v Koolhof/Sitak | 6-3,1-6,6-10 |