Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Rio Cuarto | 2021/12/08 12:45 | Nicolas Zanellato v Santiago Bramajo | 6-7,1-6 |
| ITF M25 Villa Allende | 2021/12/02 16:30 | Nicolas Zanellato v Alejo Lorenzo Lingua Lavallen | 2-6,2-6 |
| ITF M25 Villa Allende | 2021/12/01 12:55 | Nicolas Zanellato v Mateo Del Pino | 7-5,6-4 |
| ITF M15 Cordoba | 2021/11/24 17:30 | Leonardo L Linquet v Nicolas Zanellato | 7-5,6-4 |
| ITF M25 Aparecida De Goiania | 2021/11/11 16:00 | Nicolas Zanellato v Matias Zukas | 1-6,6-3,4-6 |
| ITF M25 Aparecida De Goiania | 2021/11/09 16:30 | Nicolas Zanellato v Lucas Obeid | 6-0,6-2 |
| ITF M15 Brasilia | 2021/11/03 18:00 | Mateo Barreiros Reyes v Nicolas Zanellato | 7-6,2-6,6-4 |
| ITF M25 Rio do Sul | 2021/10/22 13:50 | Gustavo Heide v Nicolas Zanellato | 6-2,3-6,7-6 |