Stadium: Cancha 8 Round: 25 Ground: Clay
| Challenger Montevideo | 2018/11/05 17:00 | Lorenzo Giustino v Thomaz Bellucci | 6-3,6-3 |
| 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 Barcelona | 2018/10/09 12:35 | Gianluigi Quinzi v Pedro Martinez | 4-6,5-7 |
| Challenger Florence | 2018/10/04 10:10 | Gianluigi Quinzi v Andrea Pellegrino | 6-7,1-6 |
| Challenger Florence | 2018/10/03 09:55 | Gianluigi Quinzi v Andrej Martin | 6-2,6-2 |
| Challenger Szczecin | 2018/09/14 15:30 | Alejandro Davidovich Fokina v Gianluigi Quinzi | 7-6,0-6,6-4 |
| Challenger Szczecin | 2018/09/12 11:00 | Gianluigi Quinzi v Tomas Barrios Vera | 6-1,6-3 |
| Challenger Szczecin | 2018/09/10 15:40 | Karol Drzewiecki v Gianluigi Quinzi | 3-6,4-6 |
| Challenger Genova | 2018/09/05 12:10 | Gianluigi Quinzi v Viktor Galovic | 6-4,4-6,3-6 |
| US Open | 2018/08/21 18:50 | Gianluigi Quinzi v Pedro Martinez | 3-6,4-6 |