Stadium: Court Sopra Steria Round: 27 Ground: Hardcourt indoor
| Challenger Mestre | 2018/05/24 11:15 | Roberto Marcora v Sergio Gutierrez-Ferrol | 5-7,4-6 |
| Challenger Mestre | 2018/05/23 13:35 | Carlos Boluda-Purkiss v Roberto Marcora | 4-6,7-5,3-6 |
| Challenger Mestre Qual | 2018/05/21 09:30 | Roberto Marcora v Juan Pablo Ficovich | 5-7,7-5,6-1 |
| Challenger Mestre Qual | 2018/05/20 09:50 | Roberto Marcora v Omar Giacalone | 7-5,7-6 |
| Challenger Mestre Qual | 2018/05/19 12:00 | Joao Menezes v Roberto Marcora | 5-7,3-6 |
| Challenger Lisbon Qual | 2018/05/12 10:50 | Roberto Marcora v Gerard Granollers-Pujol | 5-7,6-7 |
| Challenger Rome | 2018/05/08 12:05 | Gianluigi Quinzi v Roberto Marcora | 6-4,6-4 |
| Challenger Rome Qual | 2018/05/07 08:00 | Inigo C Huegun v Roberto Marcora | 5-7,7-6,6-3 |
| French Open Qual | 2018/05/22 08:00 | Rogerio Dutra Silva v Cristian Garin | 7-6,6-4 |
| Challenger Lisbon | 2018/05/20 10:00 | Cristian Garin v Tommy Robredo | 6-3,3-6,2-6 |
| Challenger Lisbon | 2018/05/19 11:15 | Cristian Garin v Pedro Sousa | 5-7,7-5,6-4 |
| Challenger Lisbon | 2018/05/18 14:00 | Taro Daniel v Cristian Garin | 6-4,1-6,0-6 |
| Challenger Lisbon | 2018/05/17 10:00 | Cristian Garin v Jaume Munar | 6-4,7-6 |
| Challenger Lisbon | 2018/05/15 13:40 | Juan Pablo Ficovich v Cristian Garin | 3-6,5-7 |
| Challenger Savannah | 2018/05/03 17:15 | Reilly Opelka v Cristian Garin | 6-4,6-4 |
| Challenger Savannah | 2018/05/01 21:35 | Cristian Garin v Donald Young | 6-3,4-6,6-1 |