Stadium: Cancha 1 Round: 24 Ground: Clay
| Challenger Vicenza Qual | 2018/05/26 10:10 | Juan Ignacio Galarza v Alejandro Gonzalez | 6-3,6-4 |
| Challenger Columbus | 2019/01/07 16:30 | Jan Choinski v Alejandro Gonzalez | 6-2,6-3 |
| Challenger Houston | 2018/11/11 16:00 | Alejandro Gonzalez v Alexis Galarneau | 6-3,4-6,4-6 |
| Challenger Houston | 2018/11/10 15:00 | Alejandro Gonzalez v Jonathan Chang | 6-2,6-3 |
| Challenger Knoxville | 2018/11/05 16:40 | Michael Redlicki v Alejandro Gonzalez | 7-6,3-6,7-5 |
| Challenger Charlottesville | 2018/10/28 14:00 | Mikael Ymer v Alejandro Gonzalez | 6-2,6-3 |
| Challenger Charlottesville | 2018/10/27 17:55 | Isaiah Strode v Alejandro Gonzalez | 1-6,2-6 |
| Challenger Las Vegas | 2018/10/20 20:45 | Alex Rybakov v Alejandro Gonzalez | 6-2,7-6 |
| Challenger Calgary | 2018/10/16 19:20 | Alejandro Gonzalez v Casper Ruud | 6-3,5-7,6-7 |
| ITF Chile F3 | 2018/11/28 14:00 | Michel Vernier v Juan Ignacio Galarza | 4-6,7-6,6-2 |
| ITF Chile F3 | 2018/11/27 14:00 | Nicolas Alberto Arreche v Juan Ignacio Galarza | 1-6,0-6 |
| ITF Chile F2 | 2018/11/20 22:45 | Juan Ignacio Galarza v Bastian Malla | 6-3,4-6,4-6 |
| Challenger Buenos Aires | 2018/11/12 16:30 | Bastian Malla v Juan Ignacio Galarza | 6-4,2-6,6-2 |
| Challenger Buenos Aires | 2018/11/12 00:50 | Juan Ignacio Galarza v Camilo Ugo Carabelli | 7-5,6-1 |
| Challenger Buenos Aires | 2018/11/11 17:50 | Matias Zukas v Juan Ignacio Galarza | 6-7,7-5,4-6 |
| Challenger Montevideo | 2018/11/06 16:40 | Juan Ignacio Galarza v Guido Andreozzi | 6-1,5-7,3-6 |
| Challenger Montevideo | 2018/11/05 17:45 | Juan Ignacio Galarza v Ulises Blanch | 6-3,2-6,6-4 |