Stadium: Centre Court Round: 29 Ground: Clay
| ATP Estoril Qual | 2018/04/28 11:00 | Joao Domingues v Alessandro Giannessi | 7-5,6-1 |
| ATP Barcelona Qual | 2018/04/21 08:00 | Bjorn Fratangelo v Alessandro Giannessi | 7-5,6-4 |
| Challenger Barletta | 2018/04/10 09:40 | Zsombor Piros v Alessandro Giannessi | 2-6,1-6 |
| Challenger Alicante | 2018/04/03 08:00 | Ivan Gakhov v Alessandro Giannessi | 1-6,6-7 |
| Challenger Marbella | 2018/03/27 12:25 | Ramkumar Ramanathan v Alessandro Giannessi | 6-4,3-6,6-3 |
| Challenger Santiago | 2018/03/06 14:00 | Jozef Kovalik v Alessandro Giannessi | 6-3,2-6,6-2 |
| Challenger Punta del Este | 2018/03/02 21:00 | Simone Bolelli v Alessandro Giannessi | 6-2,7-5 |
| Challenger Punta del Este | 2018/03/01 18:30 | Jozef Kovalik v Alessandro Giannessi | 6-7,6-2,6-7 |
| Challenger Mexico City | 2018/04/13 00:55 | Carlos Berlocq v Jan Choinski | 3-6,4-6 |
| Challenger Mexico City | 2018/04/10 22:05 | Carlos Berlocq v Sebastian Korda | 3-6,6-1,6-4 |
| Challenger Panama City | 2018/04/07 23:00 | Carlos Berlocq v Blaz Rola | 6-2,6-0 |
| Challenger Panama City | 2018/04/06 21:00 | Juan Ignacio Londero v Carlos Berlocq | 7-6,5-7,6-7 |
| Challenger Panama City | 2018/04/05 20:30 | Carlos Berlocq v Jose Hernandez-Fernandez | 7-5,6-2 |
| Challenger Panama City | 2018/04/04 18:50 | Carlos Berlocq v Andrea Basso | 6-2,6-4 |
| Challenger Panama City | 2018/04/02 17:20 | Carlos Berlocq v Federico Coria | 6-4,6-1 |
| ATP Miami Qual | 2018/03/20 15:50 | Bjorn Fratangelo v Carlos Berlocq | 7-6,6-4 |