Stadium: Center Court Round: 26 Ground: Clay
| Challenger Caltanissetta | 2016/06/10 14:30 | Matteo Donati v Gianluigi Quinzi | 6-4,3-6,6-4 |
| Challenger Perugia | 2018/07/11 13:00 | Ricardo Ojeda Lara v Gianluigi Quinzi | 4-6,5-7 |
| Challenger Milan | 2018/06/28 15:30 | Andrea Arnaboldi v Gianluigi Quinzi | 7-5,2-6,6-3 |
| Challenger Milan | 2018/06/26 13:40 | Hernan Casanova v Gianluigi Quinzi | 4-6,4-6 |
| Challenger L'Aquila | 2018/06/22 13:00 | Guilherme Clezar v Gianluigi Quinzi | 6-3,1-6,7-6 |
| Challenger L'Aquila | 2018/06/21 08:00 | Benjamin Hassan v Gianluigi Quinzi | 3-6,4-6 |
| Challenger L'Aquila | 2018/06/18 17:00 | Roberto Quiroz v Gianluigi Quinzi | 2-6,4-6 |
| Challenger Vicenza | 2018/05/31 12:30 | Guilherme Clezar v Gianluigi Quinzi | 6-4,6-3 |
| Challenger Vicenza | 2018/05/30 09:00 | Gianluca Mager v Gianluigi Quinzi | 2-6,3-6 |
| Challenger Perugia | 2018/07/11 09:00 | Gonzalo Escobar v Matteo Donati | 6-7,4-6 |
| Wimbledon Qual | 2018/06/25 10:00 | Matteo Donati v Bernard Tomic | 6-7,3-6 |
| Challenger Caltanissetta | 2018/06/17 16:00 | Jaume Munar v Matteo Donati | 6-2,7-6 |
| Challenger Caltanissetta | 2018/06/16 17:50 | Matteo Donati v Attila Balazs | 0-6,6-4,6-4 |
| Challenger Caltanissetta | 2018/06/12 10:40 | Matteo Donati v Casper Ruud | 7-6,7-5 |
| Challenger Poznan | 2018/06/07 16:00 | Matteo Donati v Hubert Hurkacz | 3-6,7-6,3-6 |
| Challenger Poznan | 2018/06/06 10:00 | Michal Dembek v Matteo Donati | 6-7,3-6 |
| Challenger Vicenza | 2018/06/03 09:15 | Hugo Dellien v Matteo Donati | 6-4,5-7,6-4 |