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On the other side, Banfield had been eliminated by Almagro (then beat by Boca) in playoff 1–0, but the disaffiliation of Lanús from the AFA caused the Association reprogrammed the competition. As a result, Banfield had a new chance, where the team beat Estudiantes de La Plata (unknown score), Sportivo Barracas (3–1), Porteño (4–0) and Tiro Federal (2–1 in semifinal).
The final was held in Sportivo Barracas Stadium on January 30, 1921. Boca Juniors's Marcelino Martínez scored the first goal on 23 minutes, but Banfield finally won the match with goals of Pambrún and López, achieveing its first title in the top division of Argentina.
Road to the final
Keys
Original tournament, then abandoned after participating teams disaffiliated from AFA.
Tournament re-started, with dissafiliated clubs replaced.
Banfield had been eliminated from the competition, but returned due to replace Lanús, which had disaffiliated to join dissident Asociación Amateurs de Football.
Won points (and qualification) due to Estudiantes did not contested the match.
Tournament re-started by the AFA after some clubs left the association.
^ Boca Juniors had earned their place in the final before the tournament were suspended by AFA.
Banfield, champions
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Banfield
