Stadium: Court 7 Round: 62 Ground: Clay
| ITF - M15 Villa Maria | 2021/03/29 12:30 | Santiago De La Fuente v Postay, Alan | 6-2,6-0 |
| Maldonado, Singles Qualifying M-ITF-URU-01A | 2019/11/26 12:00 | Postay, Alan v Bautista Vilicich | 6-4,3-6,5-10 |
| Junin, Singles M-ITF-ARG-23A | 2019/10/23 12:00 | Postay, Alan v Bruna, Esteban | 5-7,1-6 |
| 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 |