The 2021 Argentine Primera División - Liga Profesional (officially the Torneo Socios.com for sponsorship reasons)[1] was the 131st season of top-flight professional football in Argentina.
River Plate won their 37th national league championship with three matches to spare after they defeated Racing 4–0 on 25 November 2021.
[4][5] The competition was run under a single round-robin, contested by 26 teams (24 from the previous edition plus 2 promoted from Primera Nacional).
The total tally is then divided by the number of games played in the top flight over those three seasons and an average is calculated.
The three teams with the worst average at the end of the season would have been relegated to Primera Nacional.