Stadium: Center Court Round: 19 Ground: Hardcourt indoor
| Challenger Montevideo | 2019/11/04 20:45 | Nicolas Mejia v Ulises Blanch | 7-6,7-6 |
| 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 |
| Challenger Bogota | 2021/10/19 18:20 | Oriol Roca Batalla v Ulises Blanch | 6-3,6-2 |
| ATP Indian Wells | 2021/10/05 18:00 | Ulises Blanch v Aleksandar Vukic | 2-6,5-7 |
| Challenger Cary | 2021/09/14 16:30 | Ulises Blanch v Shintaro Mochizuki | 5-7,0-6 |
| US Open | 2021/08/26 16:35 | Ulises Blanch v Gastao Elias | 4-6,3-6 |
| US Open | 2021/08/24 20:55 | Pedro Sousa v Ulises Blanch | 4-6,4-6 |
| ATP Washington | 2021/07/31 21:20 | Jeffrey John Wolf v Ulises Blanch | 6-7,7-6,6-3 |
| Challenger Lexington | 2021/07/26 19:25 | Ulises Blanch v Shuichi Sekiguchi | 6-3,6-4 |
| Challenger Cary | 2021/07/20 21:00 | Jack Sock v Ulises Blanch | 2-6,6-4,6-2 |