Stadium: CT TÊNIS4 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Rio do Sul | 2021/10/20 16:40 | Amnon Felipe v Oscar Jose Gutierrez | 0-6,4-6 |
| ITF M25 Rio do Sul | 2021/10/18 18:00 | Daniel V C Rebelo v Amnon Felipe | 3-6,5-7 |
| ITF M25 Rio do Sul | 2021/10/17 15:00 | Amnon Felipe v Matheus T Rezende | 6-0,6-0 |
| ITF M15 Cordoba | 2021/11/24 14:30 | Mateo Barreiros Reyes v Juan Bautista Torres | 4-6,2-6 |
| ITF M15 Cordoba | 2021/11/23 13:00 | Franco Roncadelli v Mateo Barreiros Reyes | 6-4,4-6,12-14 |
| ITF M15 Cordoba | 2021/11/22 12:00 | Tobias Franco v Mateo Barreiros Reyes | 3-6,3-6 |
| ITF M15 Cordoba | 2021/11/21 12:00 | Gonzalo Zeitune v Mateo Barreiros Reyes | 1-6,0-6 |
| ITF M25 Aparecida De Goiania | 2021/11/09 13:10 | Mateo Barreiros Reyes v Paulo A S Dos Santos | 6-7,4-6 |
| ITF M25 Aparecida De Goiania | 2021/11/08 16:00 | Gabriel Batagin v Mateo Barreiros Reyes | 3-6,2-6 |
| ITF M25 Aparecida De Goiania | 2021/11/07 17:00 | Gustavo Teisen Pereira v Mateo Barreiros Reyes | 4-6,2-6 |
| ITF M15 Brasilia | 2021/11/04 14:25 | Mateo Barreiros Reyes v Conner Huertas Del Pino | 2-6,4-6 |