| 7. Ronde | 29.03.2021 | River Plate II | - | Racing Club II | 1:0 | ||||
| 8. Ronde | 02.04.2021 | Arsenal de Sarandí II | - | River Plate II | 1:1 | ||||
| 9. Ronde | 09.04.2021 | River Plate II | - | Colón de Santa Fe II | 7:0 |  |
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| 10. Ronde | 16.04.2021 | Central Córdoba SdE II | - | River Plate II | 1:2 | ||||
| 11. Ronde | 23.04.2021 | River Plate II | - | San Lorenzo II | 2:1 | ||||
| 12. Ronde | 30.04.2021 | Banfield II | - | River Plate II | 1:2 | ||||
| 13. Ronde | 07.05.2021 | River Plate II | - | Aldosivi II | 3:3 |
Argentinië