Stadium: Campo 5 Round: 25 Ground: Clay
| Challenger - Santiago | 2021/10/05 14:00 | Matheus P De Almeida v Alexis Gautier | 6-4,1-6,3-6 |
| Challenger - Santiago | 2021/10/06 14:00 | Alexis Gautier v Francisco Cerundolo | 4-6,2-6 |
| Challenger - Santiago | 2021/10/05 14:00 | Matheus P De Almeida v Alexis Gautier | 6-4,1-6,3-6 |
| Challenger - Santiago | 2021/10/04 14:00 | Alexis Gautier v Perchicot, Mathieu | 6-2,6-7,6-0 |
| Challenger - Santiago | 2021/10/03 14:00 | Alexis Gautier v Matos, Rafael | 6-3,6-2 |
| Challenger - Lima | 2021/09/26 19:50 | Alexis Gautier v Barrientos, Nicolas | 0-6,0-6 |
| Ambato, Ecuador | 2021/09/24 16:00 | Facundo Mena v Alexis Gautier | 7-6,6-4 |
| Ambato, Ecuador | 2021/09/23 15:00 | Alexis Gautier v Andrej Martin | 6-3,7-6 |
| Ambato, Ecuador | 2021/09/22 15:00 | Alexis Gautier v Gonzalo Lama | 6-4,6-7,6-3 |
| Challenger - Santiago | 2021/10/16 17:00 | Felipe Meligeni Rodrigues Alves v Matheus P De Almeida | 6-2,6-4 |
| Challenger - Santiago | 2021/10/15 19:40 | Matheus P De Almeida v Francisco Cerundolo | 7-6,2-6,6-4 |
| Challenger - Santiago | 2021/10/13 16:35 | Matheus P De Almeida v Nicolas Kicker | 3-6,6-2,6-4 |
| Challenger - Santiago | 2021/10/12 18:40 | Enzo Couacaud v Matheus P De Almeida | 1-6,1-6 |
| Challenger - Santiago | 2021/10/05 14:00 | Matheus P De Almeida v Alexis Gautier | 6-4,1-6,3-6 |
| Challenger - Lima | 2021/09/29 17:05 | Matheus P De Almeida v Johan Nikles | 6-7,4-6 |
| Challenger - Lima | 2021/09/27 20:15 | Francisco Cerundolo v Matheus P De Almeida | 2-6,4-6 |
| Challenger Kyiv | 2021/09/08 08:00 | Matheus P De Almeida v Nuno Borges | 6-2,2-6,5-7 |