Stadium: Cancha 5 Round: 54
| Challenger Guadalajara Qual | 2018/04/15 17:40 | Alejandro Gonzalez v Felipe Mantilla | 7-6,7-6 |
| Challenger Guadalajara Qual | 2018/04/14 20:05 | Alejandro Gonzalez v Franco Agamenone | 6-2,6-2 |
| Davis Cup | 2018/04/08 01:40 | Alejandro Gonzalez v Joao Pedro Sorgi | 6-3,7-6 |
| Challenger - San Luis Potosi | 2018/03/29 23:20 | Alejandro Gonzalez v Gonzalo Escobar | 3-6,4-6 |
| Challenger - Drummondville | 2018/03/13 22:45 | Alejandro Gonzalez v Filip Peliwo | 3-6,6-4,3-6 |
| ITF Canada F2 | 2018/03/08 15:00 | Alejandro Gonzalez v Dominik Koepfer | 3-6,1-6 |
| ITF Canada F2 | 2018/03/06 15:00 | Alejandro Gonzalez v Adrien Bossel | 3-6,7-6,6-4 |
| ITF Canada F1 | 2018/03/02 20:30 | Alejandro Gonzalez v Ugo Humbert | 4-6,4-6 |
| Challenger Guadalajara Qual | 2018/04/15 17:40 | Lloyd Glasspool v Joao Souza | 6-3,6-7,6-7 |
| Challenger Guadalajara Qual | 2018/04/14 19:05 | Raul-Isaias Rosas-Zarur v Joao Souza | 2-6,0-6 |
| Challenger - Mexico City | 2018/04/11 21:05 | Joao Souza v Adrian Menendez-Maceiras | 4-6,6-2,3-6 |
| Challenger - Mexico City | 2018/04/10 17:00 | Joao Souza v Guilherme Clezar | 7-6,7-5 |
| Challenger - San Luis Potosi | 2018/03/27 18:00 | Daniel Elahi Galan v Joao Souza | 6-7,7-6,7-5 |
| ATP Miami Qual | 2018/03/19 15:35 | Ruben Bemelmans v Joao Souza | 7-5,6-3 |
| Challenger - Santiago | 2018/03/06 17:50 | Joao Souza v Carlos Gomez-Herrera | 3-6,1-6 |
| Challenger - Santiago - kvalifikácia | 2018/03/05 14:00 | Joao Souza v Pedro Cachin | 5-7,6-7 |