Stadium: Cancha Central Round: 45 Ground: Clay
| Challenger Montevideo Qual | 2017/11/04 17:20 | Jose Pereira v Emiliano Troche | 6-0,6-1 |
| Challenger Guayaquil | 2018/10/31 16:00 | Ulises Blanch v Facundo Arguello | 4-6,1-6 |
| Challenger Guayaquil | 2018/10/30 19:20 | Ulises Blanch v Facundo Bagnis | 7-5,6-4 |
| Challenger Guayaquil | 2018/10/29 15:30 | Martin Cuevas v Ulises Blanch | 6-2,6-3 |
| Challenger Guayaquil | 2018/10/28 17:20 | Tomas Martin Etcheverry v Ulises Blanch | 6-7,3-6 |
| Challenger Guayaquil | 2018/10/27 20:10 | Raybin Lee Chan v Ulises Blanch | 0-6,0-6 |
| Challenger Lima | 2018/10/20 15:00 | Conner Huertas Del Pino v Ulises Blanch | 6-3,5-7,7-5 |
| Challenger Santo Domingo | 2018/10/08 15:00 | Alejandro Gomez v Ulises Blanch | 4-6,7-6,6-4 |
| Challenger Santo Domingo | 2018/10/07 14:00 | Ivan Endara v Ulises Blanch | 1-6,6-7 |