Stadium: Court 2 Round: 25 Ground: Clay
| ITF Peru F1 | 2017/12/13 19:00 | Mendoza, Alejandro v Oscar Jose Gutierrez | 1-6,3-6 |
| ITF Brazil F8 | 2018/11/09 14:30 | Oscar Jose Gutierrez v Matos, Rafael | 6-4,4-6,2-6 |
| ITF Brazil F8 | 2018/11/07 21:40 | Oscar Jose Gutierrez v Marques Da Silva, Rafael | 6-1,6-2 |
| ITF Brazil F8 | 2018/11/06 17:55 | Oscar Jose Gutierrez v Fermin Tenti | 4-6,6-4,7-6 |
| ITF Brazil F7 | 2018/10/29 16:05 | Oscar Jose Gutierrez v Severino, Carlos Eduardo | 6-2,3-6,4-6 |
| ITF Brazil F6 | 2018/10/23 18:00 | Oscar Jose Gutierrez v Ignacio Monzon | 4-6,4-6 |
| ITF Brazil F5 | 2018/10/19 13:00 | Oscar Jose Gutierrez v Matos, Rafael | 3-6,6-7 |
| ITF Brazil F5 | 2018/10/18 13:00 | Oscar Jose Gutierrez v Severino, Carlos Eduardo | 6-3,6-1 |
| ITF Brazil F5 | 2018/10/15 22:00 | Oscar Jose Gutierrez v Ignacio Carou | 6-4,7-5 |
| ITF Argentina F9 | 2018/11/12 17:00 | Besada, Santiago v Mendoza, Alejandro | 6-3,6-3 |
| ITF Argentina F8 | 2018/11/05 13:00 | Mendoza, Alejandro v Santiago Rodriguez Taverna | 3-6,1-6 |
| ITF Argentina F7 | 2018/10/29 17:00 | Mendoza, Alejandro v Conner Huertas Del Pino | 3-6,2-6 |
| ITF Peru F3 | 2018/10/08 19:20 | Mendoza, Alejandro v Enrique Bogo | 6-7,2-6 |
| ITF Peru F3 | 2018/10/07 16:00 | Mendoza, Alejandro v Lima, Enrico Dos Santos | 6-4,6-1 |
| ITF Peru F3 | 2018/10/06 14:00 | Mendoza, Alejandro v Pioli Tizon, Ramiro | 6-1,6-4 |
| ITF Peru F2 | 2018/10/02 17:15 | Mendoza, Alejandro v Tomas Farjat | 3-6,3-6 |
| ITF Bolivia F3 | 2018/09/30 15:00 | Federico Zeballos v Mendoza, Alejandro | 6-2,6-1 |