Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| 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 |
| ITF M15 - Gdynia | 2021/08/10 08:00 | Alexander Kotzen v Olaf Pieczkowski | 2-6,6-2,8-10 |
| ITF M15 - Gdynia | 2021/08/09 08:00 | Alexander Kotzen v Piotr Pawlak | 6-2,6-0 |
| ITF M15 - Pärnu | 2021/08/05 10:30 | Ergi Kirkin v Alexander Kotzen | 7-6,6-4 |
| ITF M15 - Pärnu | 2021/08/04 09:05 | Julius Tverijonas v Alexander Kotzen | 6-3,5-7,2-6 |
| ITF M15 - Vejle | 2021/07/30 08:00 | Ergi Kirkin v Alexander Kotzen | 6-2,6-3 |
| ITF M15 Ithaca | 2021/11/03 13:55 | Jonathan Sorbo v Connor Farren | 6-7,4-6 |
| ITF M25 - Calabasas | 2021/10/28 19:50 | Connor Farren v Nathan Ponwith | 7-6,0-6,5-7 |
| ITF M25 - Calabasas | 2021/10/27 17:00 | Raymond Sarmiento v Connor Farren | 6-7,6-7 |
| ITF - M15 Champaign | 2021/09/15 20:50 | Gabi Adrian Boitan v Connor Farren | 7-6,6-3 |
| ITF M25 - Decatur | 2021/08/04 17:25 | Connor Farren v Alex Rybakov | 5-7,1-6 |
| ITF M25 - Decatur | 2021/08/03 15:00 | Preston Brown v Connor Farren | 6-4,6-3 |
| ITF M25 - Decatur | 2021/08/02 15:00 | Joshua Peck v Connor Farren | 4-6,3-6 |
| ITF M25 Champaign | 2021/07/27 15:00 | Connor Farren v Eliot Spizzirri | 3-6,2-6 |