Stadium: Court 11 Round: 25 Ground: Hardcourt outdoor
| US Open MD | 2021/09/03 15:00 | Golubev/Mies v Martinez/Ramos-Vinolas | 6-4,6-4 |
| ATP Winston-Salem MD | 2021/08/24 18:00 | Golubev/Mies v Arevalo/Middelkoop | 2-6,7-5,9-11 |
| ATP Cincinnati MD | 2021/08/16 19:20 | Golubev/Mies v Monroe/Tiafoe | 6-7,5-7 |
| ATP Toronto MD | 2021/08/12 15:00 | Golubev/Mies v Ram/Salisbury | 3-6,2-6 |
| ATP Toronto MD | 2021/08/11 17:55 | Cilic/Struff v Golubev/Mies | 4-6,7-5,11-13 |
| US Open MD | 2021/09/02 20:45 | Cuevas/Mannarino v Brkic T / Cacic N | 7-6,2-6,4-6 |
| ATP Winston-Salem MD | 2021/08/23 18:00 | Brkic T / Cacic N v Mahut/Martin | 4-6,1-6 |
| ATP Kitzbuhel MD | 2021/07/30 08:30 | Brkic T / Cacic N v Erler/Miedler | 6-1,1-6,10-12 |
| ATP Kitzbuhel MD | 2021/07/28 13:05 | Brkic T / Cacic N v Matos/Vasilevski | 7-6,2-6,10-8 |
| ATP Kitzbuhel MD | 2021/07/27 13:15 | Brkic T / Cacic N v Pel/Rinderknech | 6-2,6-3 |
| ATP Umag MD | 2021/07/24 21:50 | Brkic T / Cacic N v Romboli F / Vega Hernandez D | 3-6,5-7 |
| ATP Umag MD | 2021/07/23 18:50 | Brkic T / Cacic N v Sabanov/Sabanov | 6-1,6-2 |
| ATP Umag MD | 2021/07/22 18:45 | Brkic T / Cacic N v R Jebavy / J Vesely | 6-2,6-2 |