Stadium: Cancha Central Round: 25 Ground: Hardcourt outdoor
| Challenger Salinas 2 | 2021/04/28 15:00 | Nicolas Mejia v Antonio Cayetano March | 6-1,6-2 |
| ITF M25 Portoviejo | 2019/08/09 17:25 | Antonio Cayetano March v Nicolas Mejia | 2-6,2-6 |
| Challenger Guayaquil | 2021/11/01 16:00 | Nicolas Mejia v Daniel Elahi Galan | 2-6,5-7 |
| Challenger Lima | 2021/10/25 21:00 | Nicolas Mejia v Thiago Seyboth Wild | 2-6,4-6 |
| Challenger Bogota | 2021/10/22 21:25 | Gerald Melzer v Nicolas Mejia | 6-0,6-4 |
| Challenger Bogota | 2021/10/20 17:45 | Nicolas Mejia v Lucas Catarina | 6-4,7-5 |
| Challenger Bogota | 2021/10/19 17:30 | Nicolas Mejia v Cristian Rodriguez | 6-1,7-5 |
| Challenger Lima | 2021/09/28 15:00 | Camilo Ugo Carabelli v Nicolas Mejia | 6-3,6-0 |
| Challenger Columbus | 2021/09/24 20:20 | Max Purcell v Nicolas Mejia | 6-4,3-6,6-0 |
| Challenger Columbus | 2021/09/22 14:00 | Nicolas Mejia v Dayne Kelly | 6-4,0-6,6-2 |
| ITF M25 Guayaquil | 2021/10/28 16:35 | Paul Valsecchi v Antonio Cayetano March | 0-6,6-2,6-4 |
| ITF M25 Guayaquil | 2021/10/26 16:25 | Roberto P Palma v Antonio Cayetano March | 1-6,0-6 |
| Challenger Bogota | 2021/10/18 15:00 | Enzo Couacaud v Antonio Cayetano March | 6-4,6-3 |
| Challenger Bogota | 2021/10/17 15:00 | Mateo Gomez v Antonio Cayetano March | 4-6,5-7 |
| ITF M25 Lima | 2021/10/12 17:00 | Antonio Cayetano March v Gilbert S K Junior | 3-6,3-6 |
| ITF M25 Lima | 2021/10/05 15:00 | Pol Martin Tiffon v Antonio Cayetano March | 6-2,6-2 |
| Challenger Ambato | 2021/09/21 15:00 | Alejandro Gomez v Antonio Cayetano March | 6-3,6-4 |
| Challenger Quito | 2021/09/13 17:10 | Mathieu Perchicot v Antonio Cayetano March | 6-4,6-0 |