Stadium: C Round: 27 Ground: Clay
| Challenger Ostrava | 2018/05/02 10:30 | Gianluigi Quinzi v Lorenzo Giustino | 6-3,6-2 |
| Challenger Cordenons | 2017/08/15 14:35 | Lorenzo Giustino v Gianluigi Quinzi | 4-6,6-2,6-1 |
| Challenger Mestre | 2018/05/24 09:00 | Lorenzo Giustino v Liam Caruana | 6-1,6-1 |
| Challenger Mestre | 2018/05/21 13:25 | Lorenzo Giustino v Carlos Gomez-Herrera | 7-5,6-4 |
| Challenger Lisbon | 2018/05/17 16:50 | Pedro Sousa v Lorenzo Giustino | 6-2,6-0 |
| Challenger Lisbon | 2018/05/15 17:05 | Lorenzo Giustino v Joris De Loore | 7-5,1-6,7-6 |
| Challenger Braga | 2018/05/09 10:00 | Lorenzo Giustino v Alex De Minaur | 5-7,7-5,2-6 |
| Challenger Braga | 2018/05/07 13:30 | Lorenzo Giustino v Scott Griekspoor | 4-6,6-3,6-3 |
| Challenger Ostrava | 2018/05/02 10:30 | Gianluigi Quinzi v Lorenzo Giustino | 6-3,6-2 |
| Challenger Ostrava | 2018/04/30 15:15 | Lorenzo Giustino v Patrik Rikl | 6-3,7-6 |
| Challenger Mestre | 2018/05/23 10:15 | Federico Gaio v Gianluigi Quinzi | 6-7,3-6 |
| Challenger Rome | 2018/05/11 11:50 | Gianluigi Quinzi v Adam Pavlasek | 7-6,3-6,5-7 |
| Challenger Rome | 2018/05/10 11:00 | Gianluigi Quinzi v Rogerio Dutra Silva | 6-4,6-4 |
| Challenger Rome | 2018/05/09 10:25 | Ruben Bemelmans v Gianluigi Quinzi | 6-4,1-6,2-6 |
| Challenger Rome | 2018/05/08 12:05 | Gianluigi Quinzi v Roberto Marcora | 6-4,6-4 |
| Challenger Ostrava | 2018/05/04 12:20 | Gianluigi Quinzi v Gregoire Barrere | 2-6,6-7 |
| Challenger Ostrava | 2018/05/02 10:30 | Gianluigi Quinzi v Lorenzo Giustino | 6-3,6-2 |
| Challenger Ostrava | 2018/05/01 09:00 | Gleb Sakharov v Gianluigi Quinzi | 2-6,1-6 |