| UTR Pro Tennis Series Florida | 2021/12/18 14:30 | Alexander Kotzen v Adam Walton | 6-4,5-7,2-5 |
| UTR Pro Tennis Series Florida | 2021/12/17 17:30 | Alexander Kotzen v Francois Musitelli | 6-3,5-2 |
| UTR Pro Tennis Series Florida | 2021/12/16 15:30 | Alexander Kotzen v Oskar Brostrom Poulsen | 6-3,6-0 |
| UTR Pro Tennis Series Florida | 2021/12/15 18:45 | Connor Krug v Alexander Kotzen | 6-3,3-6,2-6 |
| UTR Pro Tennis Series Florida | 2021/12/14 14:00 | Martim L Prata v Alexander Kotzen | 7-6,3-6,5-7 |
| ITF M15 Champaign | 2021/09/16 15:00 | Alexander Kotzen v Cannon Kingsley | 4-6,3-6 |
| ITF M15 Champaign | 2021/09/15 19:50 | Alexander Kotzen v Lucas Horve | 6-2,6-3 |
| ITF M25 Koksijde | 2021/08/17 08:00 | Olivier Rojas v Alexander Kotzen | 6-4,6-3 |