Round: 44 Ground: Clay
| ITF Chile F2 | 2018/11/17 16:00 | Oscar Gabriel Ortiz v Karl W W Mac-Leay | 6-1,6-3 |
| ITF Chile F1 | 2018/11/13 16:00 | Nicolas Acevedo v Karl W W Mac-Leay | 6-2,6-2 |
| ITF Chile F1 | 2018/11/12 13:00 | Karl W W Mac-Leay v Lucas C R Crichigno | 6-4,3-6,6-1 |
| ITF Brazil F7 | 2018/10/27 12:00 | Matheus P De Almeida v Karl W W Mac-Leay | 6-2,6-1 |
| ITF Brazil F6 | 2018/10/21 15:30 | Karl W W Mac-Leay v Javier Naser | 7-6,3-6,0-6 |
| ITF Brazil F6 | 2018/10/20 15:30 | Gabriel P Tumasonis v Karl W W Mac-Leay | 3-6,3-6 |
| ITF Peru F2 | 2018/09/29 14:30 | Juan Manuel Lopez v Karl W W Mac-Leay | 2-6,7-6,6-1 |
| ITF Belgium F8 | 2018/08/11 08:00 | Karl W W Mac-Leay v Martin Van Der Meerschen | 2-6,2-6 |
| ITF Chile F2 | 2018/11/18 16:00 | Facundo Mena v Federico Juan Aguilar | 6-2,7-5 |
| ITF Chile F2 | 2018/11/17 16:00 | Matias Riva v Federico Juan Aguilar | 2-6,3-6 |
| ITF Chile F1 | 2018/11/13 19:55 | Federico Juan Aguilar v Arklon H D Pino | 1-6,1-6 |
| ITF Chile F1 | 2018/11/12 13:00 | Oscar Matias Leiva Biason v Federico Juan Aguilar | 1-6,3-6 |
| ITF Argentina F8 | 2018/11/03 17:00 | Conner Huertas Del Pino v Federico Juan Aguilar | 6-0,6-0 |
| ITF Argentina F7 | 2018/10/28 13:00 | Jeremias Rocco v Federico Juan Aguilar | 6-1,6-2 |
| ITF Argentina F7 | 2018/10/27 13:00 | Cristian Luciano Pastore v Federico Juan Aguilar | 2-6,2-6 |
| ITF Peru F3 | 2018/10/06 16:30 | Federico Juan Aguilar v Duilio Vallebuona | 4-6,2-6 |