Stadium: Court 1 Round: 19 Ground: Clay
| Challenger Guayaquil | 2021/10/31 16:00 | Nicolas Alvarez Varona v Francisco Castro | 6-0,6-0 |
| Challenger Losinj | 2021/10/19 12:00 | Nicolas Alvarez Varona v Nerman Fatic | 5-7,2-6 |
| Challenger Losinj | 2021/10/18 08:00 | Nicolas Alvarez Varona v Fabien Reboul | 6-4,6-4 |
| Challenger Losinj | 2021/10/17 08:00 | Nicolas Alvarez Varona v Ivan Sabanov | 6-2,6-2 |
| Challenger Alicante | 2021/10/12 09:45 | N.Sriram Balaji v Nicolas Alvarez Varona | 5-7,6-4,6-4 |
| Challenger Barcelona | 2021/10/08 09:00 | Hugo Gaston v Nicolas Alvarez Varona | 6-2,6-1 |
| Challenger Barcelona | 2021/10/07 09:00 | Filip Horansky v Nicolas Alvarez Varona | 4-6,3-6 |
| Challenger Barcelona | 2021/10/05 12:10 | Nicolas Alvarez Varona v Jiri Lehecka | 6-2,7-6 |
| Challenger Guayaquil | 2021/10/31 16:00 | Juan A H Serrano v Alejandro Gonzalez | 0-6,2-6 |
| Challenger Bogota | 2021/10/20 15:00 | Matheus Pucinelli De Almeida v Alejandro Gonzalez | 6-7,6-1,6-2 |
| Challenger Bogota | 2021/10/18 19:10 | Alejandro Gonzalez v Vit Kopriva | 6-2,7-6 |
| Challenger Lima | 2021/09/27 15:00 | Jorge Panta v Alejandro Gonzalez | 7-5,7-5 |
| Challenger Lima | 2021/09/26 16:00 | Arklon H D Pino v Alejandro Gonzalez | 4-6,7-6,6-7 |
| Challenger Ambato | 2021/09/21 15:00 | Alejandro Gonzalez v Pedro Sakamoto | 3-6,4-6 |
| Challenger Ambato | 2021/09/20 15:00 | Alejandro Gonzalez v Pol Martin Tiffon | 3-6,4-6 |
| Challenger Ambato | 2021/09/19 17:10 | Alejandro Gonzalez v Alejandro Mendoza | 6-2,6-2 |