Stadium: Court 2 Round: 25 Ground: Clay
| ITF M25 Vero Beach | 2021/10/19 16:00 | Diogo Marques v Nikolay Sysoev | 6-2,6-4 |
| ITF M25 Vero Beach | 2021/10/18 16:00 | Adam Jones v Diogo Marques | 6-3,3-6,1-10 |
| ITF M15 Almada | 2021/07/06 08:30 | Diogo Marques v Ben Patael | 3-6,5-7 |
| ITF M15 Setubal | 2020/10/07 13:55 | Diogo Marques v Naoki Nakagawa | 3-6,1-6 |
| FPT Portugal Series | 2020/07/06 09:30 | Diogo Marques v Fabio Coelho | 3-6,6-7 |
| FPT Portugal Series | 2020/06/30 20:14 | Pedro Araujo v Diogo Marques | 6-3,4-6,6-3 |
| FPT Portugal Series | 2020/06/30 11:00 | Leandro Mattar v Diogo Marques | 5-7,2-6 |
| FPT Portugal Series | 2020/06/29 13:00 | Diogo Marques v Illia Stoliar | 7-6,6-3 |
| 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 |
| UTR Pro Tennis Series Dallas | 2021/08/11 15:30 | A.J Catanzariti v Abhishek Bastola | 6-4,6-1 |