| UTR Pro Tennis Series - Floryda | 2021/12/17 17:30 | Alexander Kotzen v Francois Musitelli | 6-3,5-2 |
| UTR Pro Tennis Series - Floryda | 2021/12/16 15:30 | Alexander Kotzen v Oskar Brostrom Poulsen | 6-3,6-0 |
| UTR Pro Tennis Series - Floryda | 2021/12/15 18:45 | Connor Krug v Alexander Kotzen | 6-3,3-6,2-6 |
| UTR Pro Tennis Series - Floryda | 2021/12/14 14:00 | Martim L Prata v Alexander Kotzen | 7-6,3-6,5-7 |
| ITF - Champaign M15 | 2021/09/16 15:00 | Alexander Kotzen v Cannon Kingsley | 4-6,3-6 |
| ITF - Champaign M15 | 2021/09/15 19:50 | Alexander Kotzen v Lucas Horve | 6-2,6-3 |
| ITF - Koksijde M25 | 2021/08/17 08:00 | Olivier Rojas v Alexander Kotzen | 6-4,6-3 |
| ITF - Gdynia M15 | 2021/08/10 08:00 | Alexander Kotzen v Olaf Pieczkowski | 2-6,6-2,8-10 |
| UTR Pro Tennis Series - Floryda | 2021/12/17 14:00 | Adam Walton v Presley Thieneman | 6-0,6-3 |
| UTR Pro Tennis Series - Floryda | 2021/12/16 17:30 | Adam Walton v Juan David Velasquez | 6-1,6-1 |
| UTR Pro Tennis Series - Floryda | 2021/12/15 14:00 | Noah Schachter v Adam Walton | 5-7,3-6 |
| UTR Pro Tennis Series - Floryda | 2021/12/14 18:05 | Logan Zapp v Adam Walton | 1-6,1-6 |
| Challenger Knoxville | 2021/11/09 16:25 | Adam Walton v Daniel Altmaier | 3-6,2-6 |
| ITF - Champaign M15 | 2021/09/15 21:35 | Adam Walton v Tyler Zink | 3-6,6-7 |
| UTR Pro Tennis Series - Floryda | 2021/06/06 13:00 | Adam Walton v Ben Shelton | 7-5,6-3 |
| UTR Pro Tennis Series - Floryda | 2021/06/05 12:00 | Adam Walton v Joao Ceolin | 6-3,6-2 |