| ITF M25 Guayaquil | 2021/08/02 14:00 | Mateo Barreiros Reyes v Kessler, Mcclain | 4-6,6-3,8-10 |
| ITF M25 Portoviejo | 2021/07/28 16:00 | Mateo Barreiros Reyes v Gonzalo Lama | 3-6,4-6 |
| ITF M25 Portoviejo | 2021/07/26 20:10 | Gomez, Mateo v Mateo Barreiros Reyes | 6-7,6-7 |
| ITF M25 Portoviejo | 2021/07/26 14:30 | Mateo Barreiros Reyes v Kessler, Mcclain | 6-1,6-1 |
| ITF - M25 Santo Domingo | 2021/06/06 15:00 | Jachuck, Ronan v Mateo Barreiros Reyes | 6-4,6-1 |
| ITF - M25 Santo Domingo | 2021/05/30 15:30 | Mateo Barreiros Reyes v Jesse Flores | 2-6,4-6 |
| ITF - M15 Monastir | 2021/03/29 08:00 | Mateo Barreiros Reyes v Fausto Tabacco | 3-6,3-6 |
| ITF - M15 Monastir | 2021/03/28 10:30 | O'Neill, Daniel v Mateo Barreiros Reyes | 3-6,3-6 |