Stadium: Court N3 Round: 28 Ground: Hardcourt outdoor
| ITF M25 Austin | 2021/11/19 17:00 | Eduardo Nava v Philip Henning | 6-2,6-1 |
| ITF M25 Austin | 2021/11/18 18:35 | Eduardo Nava v Finn Bass | 5-7,6-3,6-4 |
| ITF M25 Austin | 2021/11/17 16:50 | Eduardo Nava v Ronan Joncour | 6-4,6-3 |
| ITF M25 Austin | 2021/11/16 18:20 | Eduardo Nava v Francis Casey Alcantara | 4-6,2-6 |
| ITF M15 Ithaca | 2021/10/08 15:30 | Eduardo Nava v A.J Catanzariti | 4-6,4-6 |
| ITF M15 Ithaca | 2021/10/07 16:40 | Eduardo Nava v Jakob Schnaitter | 6-1,1-6,7-6 |
| ITF M15 Ithaca | 2021/10/06 16:40 | Mark Whitehouse v Eduardo Nava | 6-7,2-6 |
| ITF M15 Ithaca | 2021/10/04 16:00 | Varun Jayaram v Eduardo Nava | 2-6,0-6 |
| ITF M25 Austin | 2021/11/19 16:55 | Colin Markes v Kareem Allaf | 6-2,4-6,7-6 |
| ITF M25 Austin | 2021/11/18 17:00 | Christian Langmo v Colin Markes | 3-6,6-3,6-7 |
| ITF M25 Austin | 2021/11/16 17:00 | Colin Markes v Tomas Pinho | 6-0,6-3 |
| ITF M25 Harlingen | 2021/11/09 15:00 | Colin Markes v Francis Casey Alcantara | 4-6,7-6,11-13 |
| ITF M15 Cancun | 2021/09/29 17:35 | Alfredo Perez v Colin Markes | 6-2,7-5 |
| ITF M15 Cancun | 2021/09/28 14:00 | Gabriel Roveri Sidney v Colin Markes | 1-6,4-6 |
| ITF M15 Cancun | 2021/09/27 14:30 | Colin Markes v Austin Ansari | 4-6,4-6 |
| ITF M15 Cancun | 2021/09/26 17:00 | Diego Bustamante v Colin Markes | 1-6,0-6 |