Stadium: Court 2 Round: 24 Ground: Hardcourt indoor
| Challenger Buenos Aires | 2018/11/11 22:00 | Ulises Blanch v Bastian Malla | 3-6,4-6 |
| Challenger Montevideo | 2018/11/05 17:45 | Juan Ignacio Galarza v Ulises Blanch | 6-3,2-6,6-4 |
| Challenger Montevideo | 2018/11/04 14:45 | Tomas Lipovsek Puches v Ulises Blanch | 3-6,2-6 |
| Challenger Montevideo | 2018/11/03 17:30 | Emiliano Troche v Ulises Blanch | 4-6,2-6 |
| 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 Houston | 2018/11/16 20:45 | Evan Song v Bradley Klahn | 3-6,6-4,1-6 |
| Challenger Houston | 2018/11/15 20:40 | Evan Song v Alexis Galarneau | 6-2,3-6,6-2 |
| Challenger Knoxville | 2018/11/07 15:00 | Michael Mmoh v Evan Song | 6-2,6-3 |
| Challenger Knoxville | 2018/11/06 15:00 | Ryan Shane v Evan Song | 6-7,4-6 |
| Challenger Knoxville | 2018/11/05 15:00 | Patrick Kypson v Evan Song | 4-6,6-3,3-6 |
| Challenger Knoxville | 2018/11/04 16:55 | Evan Song v Stefan Kozlov | 6-4,3-6,6-3 |
| Challenger Charlottesville | 2018/10/28 15:40 | Evan Song v Marcos Giron | 3-6,6-7 |
| Challenger Charlottesville | 2018/10/27 15:25 | Sekou Bangoura v Evan Song | 6-3,6-7,4-6 |