Stadium: C Round: 46 Ground: Hardcourt outdoor
| Challenger Fairfield Qual | 2017/10/09 17:00 | Alejandro Gonzalez v Ruan Roelofse | 6-7,2-6 |
| Challenger Vicenza Qual | 2018/05/26 10:10 | Juan Ignacio Galarza v Alejandro Gonzalez | 6-3,6-4 |
| ATP Lyon Qual | 2018/05/19 11:00 | Alejandro Gonzalez v Jordi Samper-Montana | 6-3,3-6,5-7 |
| Challenger Puerto Vallarta | 2018/05/01 17:00 | Alejandro Gonzalez v Roberto Cid Subervi | 2-6,7-5,2-6 |
| Challenger Leon | 2018/04/28 20:00 | John-Patrick Smith v Alejandro Gonzalez | 6-4,6-3 |
| Challenger Leon | 2018/04/27 19:30 | Alejandro Gonzalez v Ante Pavic | 3-6,6-4,6-1 |
| Challenger Leon | 2018/04/26 00:20 | Daniel Elahi Galan v Alejandro Gonzalez | 2-6,6-3,4-6 |
| Challenger Leon | 2018/04/24 16:20 | Alejandro Gonzalez v Brayden Schnur | 6-4,6-4 |
| Challenger Guadalajara Qual | 2018/04/16 17:00 | Alejandro Gonzalez v Joao Souza | 4-6,6-0,3-6 |
| Challenger Puerto Vallarta Qual | 2018/04/28 19:25 | Jose Olivares v Ruan Roelofse | 6-3,7-5 |
| Challenger Taipei | 2018/04/10 06:50 | Ti Chen v Ruan Roelofse | 7-6,6-3 |
| Challenger Taipei Qual | 2018/04/09 03:00 | Ruan Roelofse v Jacob Grills | 6-4,2-6,7-6 |
| Challenger Taipei Qual | 2018/04/07 02:00 | Chen Chang v Ruan Roelofse | 0-6,3-6 |
| ITF USA F8 | 2018/03/23 17:30 | Mathias Bourgue v Ruan Roelofse | 6-3,6-4 |
| ITF USA F8 | 2018/03/20 20:00 | Ruan Roelofse v Isaiah Strode | 6-2,6-4 |
| ITF USA F8 Qual | 2018/03/19 20:20 | Ruan Roelofse v Jake Sands | 1-6,6-4,6-2 |
| ITF USA F8 Qual | 2018/03/17 17:00 | Ruan Roelofse v Alessandro-D Ventre | 6-1,6-2 |