Stadium: Cancha Central Round: 25 Ground: Clay
| Challenger Guayaquil | 2018/10/29 18:00 | Juan Ignacio Londero v Lorenzo Giustino | 6-2,6-4 |
| Challenger Barcelona | 2018/10/12 09:30 | Pedro Martinez v Lorenzo Giustino | 6-2,7-5 |
| Challenger Barcelona | 2018/10/11 09:30 | Lorenzo Giustino v Nicola Kuhn | 6-4,4-6,6-1 |
| Challenger Barcelona | 2018/10/10 10:00 | Jordi Samper-Montana v Lorenzo Giustino | 4-6,4-6 |
| Challenger Florence | 2018/10/05 13:45 | Pablo Andujar v Lorenzo Giustino | 6-4,6-7,6-3 |
| Challenger Florence | 2018/10/04 08:30 | Kevin Krawietz v Lorenzo Giustino | 2-6,4-6 |
| Challenger Florence | 2018/10/02 13:55 | Lorenzo Giustino v Francesco Forti | 6-2,7-6 |
| Challenger Biella | 2018/09/18 11:45 | Roberto Carballes Baena v Lorenzo Giustino | 6-3,6-4 |
| Challenger Guayaquil | 2018/10/31 20:00 | Thomaz Bellucci v Guido Andreozzi | 3-6,2-6 |
| Challenger Guayaquil | 2018/10/30 00:40 | Emilio Gomez v Thomaz Bellucci | 2-6,6-3,4-6 |
| Challenger Lima | 2018/10/23 00:20 | Thomaz Bellucci v Jose Hernandez-Fernandez | 6-1,6-7,4-6 |
| Challenger Santo Domingo | 2018/10/08 21:00 | Nino Serdarusic v Thomaz Bellucci | 7-6,6-4 |
| Challenger Campinas | 2018/10/05 22:25 | Thomaz Bellucci v Thiago Monteiro | 6-2,2-6,1-6 |
| Challenger Campinas | 2018/10/04 19:00 | Thomaz Bellucci v Tomas Barrios Vera | 7-5,4-6,7-6 |
| Challenger Campinas | 2018/10/01 23:50 | Juan Ignacio Londero v Thomaz Bellucci | 4-6,3-6 |
| Challenger Banja Luka | 2018/09/13 13:30 | Laurynas Grigelis v Thomaz Bellucci | 2-6,7-6,6-3 |