Stadium: Court 2 Round: 26 Ground: Clay
| Binghamton, USA | 2019/07/23 14:00 | Strong Kirchheimer v Gonzalez, Alejandro | 7-6,6-3 |
| ITF - M25 Naples | 2021/02/17 16:25 | Panta Herreros, Jorge Brian v Gonzalez, Alejandro | 5-7,1-6 |
| Challenger Sao Paulo | 2020/11/23 19:10 | Gonzalez, Alejandro v Juan Pablo Ficovich | 3-6,6-7 |
| Challenger Sao Paulo | 2020/11/22 16:00 | Eduardo Ribeiro v Gonzalez, Alejandro | 4-6,6-1,4-6 |
| Challenger Sao Paulo | 2020/11/21 16:00 | Pedro Boscardin Dias v Gonzalez, Alejandro | 3-6,4-6 |
| Colombian National Exhibition | 2020/08/28 15:00 | Struvay, Eduardo v Gonzalez, Alejandro | 6-3,2-6,7-5 |
| Colombian National Exhibition | 2020/08/27 15:00 | Gonzalez, Alejandro v Hernandez Ramirez, Sergio Luis | 6-1,6-4 |
| Colombian National Exhibition | 2020/08/26 16:10 | Struvay, Eduardo v Gonzalez, Alejandro | 3-6,6-2,6-1 |
| Colombian National Exhibition | 2020/08/25 17:30 | Gonzalez, Alejandro v Mora, Daniel | 6-4,6-1 |
| ITF - M25 Naples | 2021/02/17 16:45 | Strong Kirchheimer v Aragone, JC | 3-6,6-2,6-1 |
| UTR Pro Tennis Series Florida | 2021/01/24 14:00 | Strong Kirchheimer v Cristian C. Rodriguez Sanchez | 7-6,3-6,6-4 |
| UTR Pro Tennis Series Florida | 2021/01/23 17:00 | Matija Pecotic v Strong Kirchheimer | 5-7,2-5 |
| UTR Pro Tennis Series Florida | 2021/01/21 14:00 | Strong Kirchheimer v Giulio Perego | 6-1,6-2 |
| UTR Pro Tennis Series Florida | 2021/01/20 16:30 | Strong Kirchheimer v Bangoura, Sekou | 6-2,6-7,6-3 |
| UTR Pro Tennis Series Florida | 2021/01/19 18:30 | Strong Kirchheimer v Harris Walker | 7-6,6-3 |
| UTR Pro Tennis Series Florida | 2021/01/18 15:30 | Strong Kirchheimer v Scott, Fletcher | 6-2,6-4 |
| UTR Pro Tennis Series Florida | 2021/01/14 18:00 | Stefan Kozlov v Strong Kirchheimer | 6-2,7-6 |