Stadium: Centre Court Round: 26 Ground: Clay
| Challenger - Cordenons | 2017/08/15 14:35 | Lorenzo Giustino v Gianluigi Quinzi | 4-6,6-2,6-1 |
| Challenger - Ostrava | 2018/05/01 09:00 | Gleb Sakharov v Gianluigi Quinzi | 2-6,1-6 |
| Challenger Francavilla | 2018/04/29 13:00 | Gianluigi Quinzi v Casper Ruud | 6-4,6-1 |
| Challenger Francavilla | 2018/04/28 12:45 | Tallon Griekspoor v Gianluigi Quinzi | 4-6,2-6 |
| Challenger Francavilla | 2018/04/27 12:00 | Gianluigi Quinzi v Andrea Pellegrino | 6-4,5-7,6-2 |
| Challenger Francavilla | 2018/04/26 14:30 | Luca Vanni v Gianluigi Quinzi | 6-7,2-6 |
| Challenger Francavilla | 2018/04/24 16:30 | Gianluigi Quinzi v Joris De Loore | 6-4,6-3 |
| Challenger Alicante Qual | 2018/03/31 14:55 | Jordi Samper-Montana v Gianluigi Quinzi | 6-2,3-6,6-4 |
| Challenger Marbella Qual | 2018/03/24 13:45 | Sumit Nagal v Gianluigi Quinzi | 6-3,3-6,6-3 |
| Challenger - Ostrava | 2018/04/30 15:15 | Lorenzo Giustino v Patrik Rikl | 6-3,7-6 |
| ATP Barcelona Qual | 2018/04/21 11:10 | Lorenzo Giustino v Jozef Kovalik | 7-6,2-6,5-7 |
| ITF Spain F9 | 2018/04/19 13:40 | Lorenzo Giustino v Javier Barranco Cosano | 4-6,6-7 |
| ITF Spain F9 | 2018/04/17 10:25 | Lorenzo Giustino v Omar Salman | 6-1,6-1 |
| ITF Italy F7 | 2018/04/14 12:00 | Gianluca Mager v Lorenzo Giustino | 4-6,1-6 |
| ITF Italy F7 | 2018/04/13 13:30 | Lorenzo Giustino v Andrea Collarini | 2-6,6-4,7-5 |
| ITF Italy F7 | 2018/04/12 14:50 | Bruno Santanna v Lorenzo Giustino | 3-6,5-7 |
| ITF Italy F7 | 2018/04/11 14:00 | Lenny Hampel v Lorenzo Giustino | 1-6,4-6 |