[4] The final stages had been originally scheduled to be played from 21 July to 7 November 2020, but were postponed due to the COVID-19 pandemic.
Tied 3–3 on aggregate, Junior won on penalties and advanced to the quarter-finals (Match S3).
Tied 2–2 on aggregate, Universidad Católica won on away goals and advanced to the quarter-finals (Match S4).
Tied 2–2 on aggregate, Coquimbo Unido won on away goals and advanced to the semi-finals (Match F2).
The final was played on 23 January 2021 at the Estadio Mario Alberto Kempes in Córdoba.