Stadium: Court 11 Round: 62 Ground: Clay
| UTR Pro Rio de Janeiro | 2023/01/04 13:30 | Gustavo Teisen Pereira v Christian Lindell | 4-6,4-6 |
| UTR Pro Rio de Janeiro | 2023/01/03 19:00 | Gustavo Teisen Pereira v Ryan A Dos Santos | 1-6,2-6 |
| UTR Pro Rio de Janeiro | 2023/01/02 12:00 | Gustavo Teisen Pereira v Vitor Leal | 1-6,4-6 |
| ITF M25 Vacaria | 2022/11/29 13:00 | Hernando J E Isnardi v Gustavo Teisen Pereira | 6-7,6-1,10-8 |
| ITF M25 Vacaria | 2022/11/28 12:30 | Gustavo Teisen Pereira v Federico Mirgone | 6-4,3-6,10-3 |
| ITF M15 Brasilia | 2022/08/22 13:00 | Gustavo Teisen Pereira v Bruno Fernandez | 2-6,1-6 |
| ITF M15 Recife | 2022/08/15 15:30 | Laelson Rodrigues v Gustavo Teisen Pereira | 7-5,6-0 |
| ITF M25 Campos do Jordao | 2022/01/31 13:30 | Igor Gimenez v Gustavo Teisen Pereira | 6-4,6-2 |
| ITF M15 Cordoba | 2022/11/13 13:00 | Joaquin Aguillar Cardozo v Ramiro Amarilla | 6-2,6-3 |
| ITF M15 Cordoba | 2022/11/07 13:00 | Hernando J E Isnardi v Ramiro Amarilla | 6-2,6-3 |
| UTR Pro Tennis Series Buenos Aires | 2022/10/29 23:19 | Joaquin Aguillar Cardozo v Ramiro Amarilla | 6-4,3-6,6-4 |
| UTR Pro Tennis Series Buenos Aires | 2022/10/27 17:00 | Ramiro Amarilla v Ezequiel Simonit | 4-6,3-5 |
| UTR Pro Tennis Series Buenos Aires | 2022/10/26 18:30 | Ramiro Amarilla v Gabriel Alejandro Hidalgo | 3-6,1-5 |
| UTR Pro Tennis Series Buenos Aires | 2022/10/25 13:00 | Ramiro Amarilla v Gonzalo Karakachian | 6-3,3-6,6-1 |
| UTR Pro Tennis Series Buenos Aires | 2022/10/24 14:00 | Ramiro Amarilla v Joel Angel Lucero | 6-4,6-4 |
| ITF M25 Rio Cuarto | 2022/10/11 12:00 | Ramiro Amarilla v Santiago Bramajo | 4-6,4-6 |