Stadium: Center Court Round: 25 Ground: Clay
| ITF Italy F14 | 2015/06/19 15:55 | Quinzi, Gianluigi v Galovic, Viktor | 6-7,4-6 |
| US Open, New York, USA | 2018/08/21 18:50 | Quinzi, Gianluigi v Pedro Martinez | 3-6,4-6 |
| Portoroz, Slovénie | 2018/08/07 14:25 | Quinzi, Gianluigi v Gian Marco Moroni | 3-6,7-6,5-7 |
| Challenger Padova | 2018/07/24 15:15 | Pavic, Ante v Quinzi, Gianluigi | 7-6,6-4 |
| Challenger San Benedetto | 2018/07/19 19:15 | Quinzi, Gianluigi v Guttierrez-Ferrol, Sergio | 6-1,4-6,1-6 |
| Challenger San Benedetto | 2018/07/17 19:00 | Quinzi, Gianluigi v Andrea Vavassori | 6-0,6-0 |
| Challenger Perugia | 2018/07/15 19:30 | Quinzi, Gianluigi v Ulises Blanch | 5-7,2-6 |
| Challenger Perugia | 2018/07/14 17:10 | Salvatore Caruso v Quinzi, Gianluigi | 2-6,0-6 |
| Challenger Perugia | 2018/07/13 17:00 | Gimeno-Traver, Daniel v Quinzi, Gianluigi | 1-6,2-6 |
| Challenger Como | 2018/09/02 09:45 | Galovic, Viktor v Cristian Garin | 4-6,3-6 |
| Challenger Como | 2018/09/01 14:30 | Martin Klizan v Galovic, Viktor | 6-7,0-6 |
| Challenger Como | 2018/08/29 11:45 | Galovic, Viktor v Lorenzo Giustino | 4-6,7-5,7-5 |
| Challenger Como | 2018/08/27 13:30 | Coppini, Alessandro v Galovic, Viktor | 2-6,2-6 |
| US Open, New York, USA | 2018/08/21 21:45 | Giraldo, Santiago v Galovic, Viktor | 6-4,6-4 |
| Portoroz, Slovénie | 2018/08/07 08:00 | Eriksson, Markus v Galovic, Viktor | 6-4,6-7,6-4 |
| Kitzbühel, Autriche, Qualifications | 2018/07/28 13:30 | Galovic, Viktor v Maden, Yannick | 4-6,4-6 |
| Gstaad, Switzerland | 2018/07/27 12:30 | Galovic, Viktor v Laslo Djere | 7-6,3-6,6-7 |