Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M15 East Lansing | 2021/11/16 18:00 | Raymond Sarmiento v Yasha Zemel | 6-3,6-4 |
| ITF M15 Tallahassee | 2021/10/25 13:00 | Yasha Zemel v Michael Zheng | 3-6,4-6 |
| ITF M15 Champaign | 2021/09/16 15:00 | John McNally v Yasha Zemel | 6-3,7-6 |
| ITF M15 Champaign | 2021/09/15 17:45 | Yasha Zemel v Victor Lilov | 1-6,7-6,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/20 08:00 | Yasha Zemel v Alejandro Moro Canas | 0-6,5-7 |
| ITF M25 Idanha-A-Nova | 2021/07/19 08:00 | Yasha Zemel v Manuel Almeida | 6-2,7-6 |
| ITF M25 Idanha-A-Nova | 2021/07/18 08:00 | Yasha Zemel v Digvijay Pratap Singh | 6-3,3-6,14-12 |
| ITF M25 Idanha-A-Nova | 2021/07/14 13:55 | Luis Faria v Yasha Zemel | 6-1,6-2 |
| ITF M25 Santo Domingo | 2021/11/30 13:00 | Colin Markes v Jesus M Rosario | 6-1,6-2 |
| ITF M25 Santo Domingo | 2021/11/29 15:00 | Colin Markes v Rafael Abdul Salam | 6-2,6-4 |
| ITF M25 Austin | 2021/11/20 18:45 | Eduardo Nava v Colin Markes | 7-6,6-1 |
| 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 |