Stadium: Grandstand Round: 24 Ground: Clay
| Cordenons, Italy | 2019/08/13 09:30 | Quinzi, Gianluigi v Andrea Collarini | 0-6,2-6 |
| Challenger Perugia | 2019/07/12 11:00 | Garcia-Lopez, Guillermo v Quinzi, Gianluigi | 6-3,1-6,7-6 |
| Challenger Perugia | 2019/07/11 13:45 | Quinzi, Gianluigi v Clezar, Guilherme | 6-3,4-6,7-6 |
| Challenger Perugia | 2019/07/10 13:00 | Horansky, Filip v Quinzi, Gianluigi | 6-3,2-6,2-6 |
| Challenger Perugia | 2019/07/09 14:30 | Quinzi, Gianluigi v Marcora, Roberto | 6-7,6-3,6-3 |
| Ludwigshafen, Allemagne | 2019/07/02 16:00 | Quinzi, Gianluigi v Nicola Kuhn | 6-3,6-7,3-6 |
| Parma II, Italy | 2019/06/20 16:00 | Federico Gaio v Quinzi, Gianluigi | 6-3,6-4 |
| Parma II, Italy | 2019/06/19 11:45 | Bortolotti, Marco v Quinzi, Gianluigi | 1-6,3-6 |
| Cordenons, Italy | 2019/08/14 15:15 | Gonzalez, Alejandro v Martin, Andrej | 2-6,5-7 |
| Cordenons, Italy | 2019/08/12 12:30 | Gonzalez, Alejandro v Pavic, Ante | 6-3,6-2 |
| Binghamton, USA | 2019/07/23 14:00 | Strong Kirchheimer v Gonzalez, Alejandro | 7-6,6-3 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/18 14:00 | Smith, Errol v Gonzalez, Alejandro | 7-6,6-4 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/17 15:00 | Adamson, Alec v Gonzalez, Alejandro | 5-7,0-6 |
| Winnetka, USA | 2019/07/10 18:45 | Thanasi Kokkinakis v Gonzalez, Alejandro | 6-4,6-3 |
| Winnetka, USA | 2019/07/08 17:50 | King, Kevin v Gonzalez, Alejandro | 3-6,3-6 |
| Tulsa, Singles Main, M-ITF-USA-16A | 2019/06/20 18:40 | Gonzalez, Alejandro v Nick Chappell | 6-2,5-7,6-7 |