Stadium: Court 3 Round: 26 Ground: Hardcourt indoor
| US Open - MD | 2021/09/05 19:05 | King/Reese v Ebden/Purcell | 4-6,4-6 |
| US Open - MD | 2021/09/03 18:25 | King/Reese v Inglot/Krajicek | 7-6,6-4 |
| US Open - MD | 2021/09/02 21:10 | Kubot/Melo v King/Reese | 6-7,4-6 |
| Challenger Milan - MD | 2021/06/23 13:15 | King/Reese v Bonadio/Gabashvili | 6-7,6-7 |
| ATP Halle - MD | 2021/06/12 16:10 | King/Reese v Masur/Molleker | 4-6,6-7 |
| Challenger Lyon - MD | 2021/06/08 17:30 | Cerundolo/Nagal v King/Reese | 4-6,7-5,17-15 |
| Challenger Zagrzeb - MD | 2021/05/15 10:25 | Golubev/Nedovyesov v King/Reese | 2-6,6-7 |
| Challenger Zagrzeb - MD | 2021/05/14 13:15 | King/Reese v Arneodo/Olivetti | 7-6,3-6,10-5 |
| Challenger Las Vegas - MD | 2021/10/27 19:25 | Kozlov/Polansky v Galloway/Lawson | 4-6,6-7 |
| Challenger Columbus - MD | 2021/09/25 20:25 | Kozlov/Polansky v Lutschaunig/Trotter | 7-5,7-6 |
| Challenger Columbus - MD | 2021/09/24 22:25 | Galloway/Lawson v Kozlov/Polansky | 5-7,6-3,2-10 |
| Challenger Columbus - MD | 2021/09/23 20:45 | Nam/Song v Kozlov/Polansky | 3-6,7-6,6-10 |
| Challenger Columbus - MD | 2021/09/22 00:30 | Brouwer/Stalder v Kozlov/Polansky | 5-7,6-4,7-10 |
| Challenger Cary - MD | 2021/09/18 19:45 | Blumberg/Schnur v Kozlov/Polansky | 6-4,1-6,10-4 |
| Challenger Cary - MD | 2021/09/17 22:35 | Kozlov/Polansky v Jung/Krueger | 6-7,7-5,10-4 |
| Challenger Cary - MD | 2021/09/16 18:30 | Aragone/Barrientos v Kozlov/Polansky | 4-6,4-6 |