Stadium: Court 4 Round: 25 Ground: Clay
| Junin, Singles M-ITF-ARG-23A | 2019/10/22 12:00 | Matias Riva v Postay, Alan | 4-6,6-1,8-10 |
| ITF - M15 Santiago | 2019/10/02 11:00 | Postay, Alan v Carraro, Luciano | 2-6,4-6 |
| ITF - M15 Santiago | 2019/09/30 14:00 | Postay, Alan v Barros Troncoso, Marcelo Ignacio | 6-3,6-0 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/09/15 17:00 | Doria, Luciano v Postay, Alan | 6-3,5-7,10-4 |
| ITF M15 Cancun | 2019/08/28 18:25 | Postay, Alan v Brandon Walkin | 5-7,3-6 |
| ITF M15 Cancun | 2019/08/26 18:00 | Postay, Alan v Shamma, Nicholas | 1-6,1-6 |
| ITF M15 Cancun | 2019/08/26 14:30 | Postay, Alan v Jirasook, Kyler | 7-6,6-2 |
| ITF M15 Cancun | 2019/08/19 20:00 | Miles Jones v Postay, Alan | 6-2,6-0 |
| ITF - M15 Santiago | 2019/10/02 17:15 | Huertas Del Pino Cordova, Arklon v Bruna, Esteban | 6-2,0-6,6-1 |
| ITF - M15 Santiago | 2019/10/02 11:00 | Bruna, Esteban v Rodrigues, Pedro Gabriel | 6-3,4-6,10-3 |
| ITF - M15 Santiago | 2019/09/30 14:00 | Bruna, Esteban v Gaedechens, Matias | 6-2,6-1 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/09/15 12:00 | Gian M Di Natale v Bruna, Esteban | 7-6,2-6,10-8 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/08/26 09:00 | Zocastello, Marco v Bruna, Esteban | 6-3,4-6,10-8 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/08/22 08:00 | Lipovsek Puches, Tomas v Bruna, Esteban | 6-2,6-3 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/08/20 08:00 | Bruna, Esteban v Luca Potenza | 1-6,7-6,6-4 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/08/14 08:00 | Mathys Erhard v Bruna, Esteban | 6-2,6-3 |