| 1. Round | 16/07/2021 | River Plate II | - | Colón de Santa Fe II | 1:2 | ||||
| 2. Round | 23/07/2021 | River Plate II | - | Unión de Santa Fe II | 2:0 | ||||
| 4. Round | 30/07/2021 | River Plate II | - | Huracán II | 2:0 | ||||
| 12. Round | 17/09/2021 | River Plate II | - | Arsenal de Sarandí II | 0:1 |
| 1. Round | 16/07/2021 | River Plate II | - | Colón de Santa Fe II | 1:2 | ||||
| 2. Round | 23/07/2021 | River Plate II | - | Unión de Santa Fe II | 2:0 | ||||
| 4. Round | 30/07/2021 | River Plate II | - | Huracán II | 2:0 | ||||
| 12. Round | 17/09/2021 | River Plate II | - | Arsenal de Sarandí II | 0:1 |
| Axel Alejandro Encinas | |
| Born: | 24.05.2004 |
| Place of birth: |
Don Torcuato, 
Argentina |
| Nationality: |
Argentina
|
| Height: | 165 cm |
| Weight: | 62 kg |
| Position(s): | Offensive Midfielder Central Midfielder |
| Foot: | right |