Stadium: Cancha 1 Round: 19 Ground: Clay
| ITF M25 Tulsa | 2021/06/17 14:00 | Nicolas Kicker v Diego Hidalgo | 6-4,7-5 |
| ITF M25 Tulsa | 2021/06/16 17:10 | Strong Kirchheimer v Diego Hidalgo | 7-6,2-6,3-6 |
| ITF M25 Santo Domingo | 2021/06/10 12:50 | Evan Zhu v Diego Hidalgo | 6-2,6-3 |
| ITF M25 Santo Domingo | 2021/06/09 13:00 | Adam El Mihdawy v Diego Hidalgo | 4-6,6-7 |
| ITF M25 Santo Domingo | 2021/06/03 15:55 | Kyle Seelig v Diego Hidalgo | 6-2,6-4 |
| ITF M25 Santo Domingo | 2021/06/01 15:55 | Gerardo L Villasenor v Diego Hidalgo | 6-4,3-6,3-6 |
| Challenger Salinas 2 | 2021/04/27 16:15 | Adrian Menendez-Maceiras v Diego Hidalgo | 7-5,6-0 |
| Challenger Salinas | 2021/04/20 15:50 | Diego Hidalgo v Nicolas Mejia | 3-6,6-1,5-7 |
| ITF M15 Antalya | 2021/06/16 15:25 | Mathieu Perchicot v Savva Polukhin | 1-6,6-3,3-6 |
| ITF M15 Sarajevo | 2021/06/03 09:00 | Gergely Madarasz v Mathieu Perchicot | 6-0,6-3 |
| ITF M15 Sarajevo | 2021/06/02 09:00 | Frane Nincevic v Mathieu Perchicot | 6-2,2-6,4-6 |
| ITF M15 Bucharest | 2021/05/27 08:00 | Mathieu Perchicot v Cezar Cretu | 6-4,3-6,3-6 |
| ITF M15 Bucharest | 2021/05/25 16:00 | Mathieu Perchicot v Dan Alexandru Tomescu | 6-3,7-6 |
| ITF M15 Troisdorf | 2021/05/11 12:15 | Luca Van Assche v Mathieu Perchicot | 6-4,6-2 |
| Challenger Salinas 2 | 2021/04/26 18:25 | Facundo Diaz Acosta v Mathieu Perchicot | 6-1,6-4 |
| Challenger Salinas | 2021/04/19 16:55 | Marek Gengel v Mathieu Perchicot | 6-3,3-6,7-5 |