Stadium: Campo Central Round: 27 Ground: Clay
| Challenger Cali 2 | 2014/10/01 17:00 | Alejandro Gonzalez v Guilherme Clezar | 4-6,6-3,6-1 |
| Challenger Cali 2 | 2017/10/18 18:05 | Guilherme Clezar v Cristian Garin | 7-5,7-6 |
| Challenger Cali 2 | 2017/10/16 19:10 | Victor Estrella Burgos v Guilherme Clezar | 5-7,5-7 |
| Challenger Buenos Aires | 2017/10/10 14:00 | Guilherme Clezar v Michael Linzer | 3-6,7-6,3-6 |
| Challenger Campinas | 2017/10/05 16:40 | Gastao Elias v Guilherme Clezar | 6-4,7-6 |
| Challenger Campinas | 2017/10/03 19:00 | Guilherme Clezar v Christian Lindell | 6-3,6-2 |
| Davis Cup | 2017/09/15 02:00 | Yuichi Sugita v Guilherme Clezar | 6-2,7-5,7-6 |
| Challenger Quito | 2017/09/01 16:30 | Nicolas Jarry v Guilherme Clezar | 4-6,7-6,6-4 |
| Challenger Quito | 2017/08/30 17:15 | Roberto Quiroz v Guilherme Clezar | 3-6,7-6,2-6 |
| Challenger Cali 2 | 2017/10/18 21:00 | Juan Ignacio Londero v Alejandro Gonzalez | 4-6,6-4,3-6 |
| Challenger Cali 2 | 2017/10/17 17:15 | Alejandro Gonzalez v Jozef Kovalik | 3-6,6-2,6-3 |
| Challenger Fairfield | 2017/10/12 17:00 | Alejandro Gonzalez v Bjorn Fratangelo | 6-7,6-7 |
| Challenger Fairfield | 2017/10/10 17:00 | Alejandro Gonzalez v John-Patrick Smith | 6-1,6-4 |
| Challenger Fairfield Qual | 2017/10/09 17:00 | Alejandro Gonzalez v Ruan Roelofse | 6-7,2-6 |
| Challenger Fairfield Qual | 2017/10/08 20:20 | Dominik Koepfer v Alejandro Gonzalez | 4-6,6-4,3-6 |
| Challenger Fairfield Qual | 2017/10/07 23:00 | Alejandro Gonzalez v Timothy Sah | 6-4,6-4 |
| Challenger Stockton Qual | 2017/10/01 18:40 | Frederik Nielsen v Alejandro Gonzalez | 6-4,6-1 |