Stadium: Pista 1 Round: 26 Ground: Clay
| Challenger - Barcelone | 2018/10/09 11:00 | Guttierrez-Ferrol, Sergio v Grigelis, Laurynas | 6-4,6-2 |
| Florence, Italy | 2018/10/05 09:30 | Guttierrez-Ferrol, Sergio v Marco Trungelliti | 7-6,3-6,6-7 |
| Florence, Italy | 2018/10/04 10:10 | Gimeno-Traver, Daniel v Guttierrez-Ferrol, Sergio | 5-7,7-6,1-6 |
| Florence, Italy | 2018/10/03 08:00 | Guttierrez-Ferrol, Sergio v Giovanni Fonio | 2-6,7-6,6-2 |
| Challenger Szczecin | 2018/09/12 11:00 | Guttierrez-Ferrol, Sergio v Alejandro Davidovich Fokina | 5-7,6-7 |
| Challenger Szczecin | 2018/09/10 11:15 | Lorenzi, Paolo v Guttierrez-Ferrol, Sergio | 4-6,6-3,5-7 |
| Challenger Seville | 2018/09/06 15:30 | Brkic, Tomislav v Guttierrez-Ferrol, Sergio | 6-3,6-7,6-2 |
| Challenger Seville | 2018/09/05 09:00 | Lorenzo Giustino v Guttierrez-Ferrol, Sergio | 7-5,3-6,3-6 |
| Challenger - Barcelone | 2018/10/09 11:00 | Baldi, Filippo v Lopez San Martin, Alvaro | 6-2,6-0 |
| Florence, Italy | 2018/10/05 11:00 | Lorenzo Sonego v Baldi, Filippo | 6-4,6-7,6-3 |
| Florence, Italy | 2018/10/04 10:05 | Robredo, Tommy v Baldi, Filippo | 3-6,2-6 |
| Florence, Italy | 2018/10/03 08:00 | Baldi, Filippo v Stefano Travaglia | 5-7,7-5,7-5 |
| Challenger Biella | 2018/09/20 09:30 | Arguello, Facundo v Baldi, Filippo | 6-4,6-2 |
| Challenger Biella | 2018/09/18 13:55 | Pedro Cachin v Baldi, Filippo | 3-6,7-6,4-6 |
| Challenger Banja Luka | 2018/09/15 10:30 | Baldi, Filippo v Alessandro Giannessi | 6-7,4-6 |
| Challenger Banja Luka | 2018/09/14 08:30 | Londero, Juan Ignacio v Baldi, Filippo | 6-4,0-6,5-7 |