Stadium: Court 1 Round: 54 Ground: Clay
| ITF Peru F1 | 2017/12/15 23:00 | Oscar Jose Gutierrez v Nicolas Alvarez | 3-6,5-7 |
| Challenger Campinas | 2018/09/30 13:00 | Oscar Jose Gutierrez v Tomas Lipovsek Puches | 6-7,6-3,6-2 |
| Challenger Campinas Qual | 2018/09/29 13:00 | Oscar Jose Gutierrez v Breno Lodis | 6-1,6-1 |
| Challenger Biella | 2018/09/18 10:30 | Matteo Donati v Oscar Jose Gutierrez | 6-3,6-3 |
| Challenger Biella | 2018/09/17 10:00 | Jan Satral v Oscar Jose Gutierrez | 6-2,6-2 |
| Challenger Biella | 2018/09/16 12:00 | Francesco Paschetto v Oscar Jose Gutierrez | 3-6,0-6 |
| Challenger Biella | 2018/09/15 12:00 | Jannik Sinner v Oscar Jose Gutierrez | 6-4,4-6,6-7 |
| ITF Italy F27 | 2018/09/13 16:25 | Oscar Jose Gutierrez v Marco Bortolotti | 3-6,1-6 |
| ITF Italy F27 | 2018/09/12 16:35 | Oscar Jose Gutierrez v Enrico Dalla Valle | 6-1,6-2 |
| Challenger Campinas | 2018/09/30 13:00 | Nicolas Alvarez v Pedro Sakamoto | 6-3,7-6 |
| Challenger Campinas Qual | 2018/09/29 14:15 | Christian Lindell v Nicolas Alvarez | 2-6,1-6 |
| ITF Argentina F5 | 2018/09/15 13:30 | Nicolas Alvarez v Camilo Ugo Carabelli | 2-6,6-7 |
| ITF Argentina F5 | 2018/09/14 16:15 | Nicolas Alvarez v Genaro Alberto Olivieri | 6-3,1-6,6-2 |
| ITF Argentina F5 | 2018/09/13 13:30 | Francisco Cerundolo v Nicolas Alvarez | 6-4,3-6,6-7 |
| ITF Argentina F5 | 2018/09/12 16:05 | Guido Ivan Justo v Nicolas Alvarez | 3-6,1-6 |
| ITF Argentina F5 | 2018/09/10 13:30 | Tomas Farjat v Nicolas Alvarez | 2-6,1-6 |
| ITF USA F23 | 2018/08/17 15:50 | Antoine Hoang v Nicolas Alvarez | 6-3,6-3 |