Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| ITF M15 Vero Beach | 2021/10/20 16:00 | Diogo Marques v A.J Catanzariti | 2-6,6-3,6-3 |
| ITF M15 Ithaca | 2021/10/09 15:00 | Charles Broom v A.J Catanzariti | 3-6,6-3,6-2 |
| ITF M15 Ithaca | 2021/10/08 15:30 | Eduardo Nava v A.J Catanzariti | 4-6,4-6 |
| ITF M15 Ithaca | 2021/10/07 16:05 | A.J Catanzariti v Nathan Ponwith | 6-4,6-3 |
| ITF M15 Ithaca | 2021/10/06 13:00 | Jonathan Sorbo v A.J Catanzariti | 3-6,1-6 |
| ITF M15 Champaign | 2021/09/16 14:55 | A.J Catanzariti v Dali Blanch | 6-7,4-6 |
| ITF M15 Champaign | 2021/09/15 17:05 | Alexander Brown v A.J Catanzariti | 1-6,2-6 |
| UTR Pro Tennis Series Dallas | 2021/08/13 14:30 | Stefan Storch v A.J Catanzariti | 6-4,6-4 |
| ITF M15 Lubbock | 2021/09/30 16:15 | Henry Patten v Garrett Johns | 6-3,6-3 |
| ITF M15 Lubbock | 2021/09/28 15:00 | Garrett Johns v Nathan Ponwith | 6-3,6-2 |
| Challenger Cary | 2021/09/14 15:00 | Aleksandar Kovacevic v Garrett Johns | 7-6,6-4 |
| ITF M15 Castelo Branco | 2021/07/29 08:30 | Garrett Johns v Gilbert S K Junior | 5-7,3-6 |
| ITF M15 Castelo Branco | 2021/07/27 08:30 | Evan Hoyt v Garrett Johns | 4-6,3-6 |
| ITF M25 Idanha-A-Nova | 2021/07/21 09:50 | Garrett Johns v Gilbert S K Junior | 5-7,1-6 |
| ITF M25 Idanha-A-Nova | 2021/07/20 08:00 | Garrett Johns v Raphael Lambling | 7-6,2-6,10-3 |
| ITF M25 Idanha-A-Nova | 2021/07/18 08:00 | Garrett Johns v Henrique Rocha | 6-3,6-1 |