Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| ITF - M25 Calabasas | 2021/10/27 17:00 | Sarmiento, Raymond v Farren, Connor | 6-7,6-7 |
| UTR Pro Tennis Series California | 2021/08/29 18:00 | Tristan Boyer v Sarmiento, Raymond | 6-3,6-4 |
| UTR Pro Tennis Series California | 2021/08/28 18:00 | Kyle Kang v Sarmiento, Raymond | 6-7,4-6 |
| UTR Pro Tennis Series California | 2021/08/27 19:30 | Sema Pankin v Sarmiento, Raymond | 4-6,3-6 |
| UTR Pro Tennis Series California | 2021/08/24 19:30 | Kris Van Wyk v Sarmiento, Raymond | 4-6,1-6 |
| UTR Pro Tennis Series California | 2021/08/23 15:00 | Demulling, Wyatt v Sarmiento, Raymond | 1-6,3-6 |
| UTR Pro Tennis Series California | 2021/08/22 18:00 | Ventre, Alessandro-Damiano v Sarmiento, Raymond | 3-6,3-6 |
| ATP - Los Cabos | 2021/07/18 00:00 | Sarkissian, Alexander v Sarmiento, Raymond | 6-4,6-1 |
| ITF M15 Tallahassee | 2021/10/25 13:00 | Zemel, Yankel v Michael Zheng | 3-6,4-6 |
| ITF M15 Champaign | 2021/09/16 15:00 | Mcnally, John v Zemel, Yankel | 6-3,7-6 |
| ITF M15 Champaign | 2021/09/15 17:45 | Zemel, Yankel v Victor Lilov | 1-6,7-6,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/20 08:00 | Zemel, Yankel v Alejandro Moro Canas | 0-6,5-7 |
| ITF M25 Idanha-A-Nova | 2021/07/19 08:00 | Zemel, Yankel v Almeida, Manuel | 6-2,7-6 |
| ITF M25 Idanha-A-Nova | 2021/07/18 08:00 | Zemel, Yankel v Singh, Digvijaypratap | 6-3,3-6,14-12 |
| ITF M25 Idanha-A-Nova | 2021/07/14 13:55 | Faria, Luis v Zemel, Yankel | 6-1,6-2 |
| ITF M25 Idanha-A-Nova | 2021/07/13 08:00 | Zemel, Yankel v Osgar O'Hoisin | 6-4,4-6,12-10 |