Stadium: Campo 3 Round: 25 Ground: Clay
| 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 |
| 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 |
| Challenger Puerto Vallarta | 2018/05/04 23:00 | Danilo Petrovic v Carlos Gomez-Herrera | 6-3,6-3 |
| Challenger Puerto Vallarta | 2018/05/03 23:00 | Santiago Giraldo v Carlos Gomez-Herrera | 6-1,5-7,6-7 |
| Challenger Puerto Vallarta | 2018/05/03 01:35 | Carlos Gomez-Herrera v Victor Estrella Burgos | 7-6,6-3 |
| Challenger Puerto Vallarta | 2018/05/01 20:40 | Luis David Martinez v Carlos Gomez-Herrera | 3-6,6-2,2-6 |
| Challenger Leon | 2018/04/24 17:30 | Carlos Gomez-Herrera v Roberto Quiroz | 4-6,5-7 |
| Challenger Guadalajara Qual | 2018/04/14 21:35 | Carlos Gomez-Herrera v Alejandro Gomez | 7-6,6-7,2-6 |
| Challenger Alicante Qual | 2018/04/01 11:45 | Pedro Cachin v Carlos Gomez-Herrera | 6-4,6-7,7-6 |
| Challenger Alicante Qual | 2018/03/31 09:55 | Carlos Gomez-Herrera v Guillermo Olaso | 2-6,7-6,7-5 |