The 2021 Campeonato Paulista de Futebol Profissional da Primeira Divisão - Série A1 was the 120th season of São Paulo's top professional football league.
[1] Santo André In addition, it was also decided that Paulistão 2021 will have VAR in all games, including those in the first phase of the competition.
If two or more teams are equal on points on completion of the group matches, the following criteria are applied to determine the rankings:
The Troféu do Interior of the 2021 Campeonato Paulista began on 12 May with the quarter-finals and ended on 20 May 2021 with the final.
The knockout stage of the 2021 Campeonato Paulista began on 11 May with the quarter-finals and end on 23 May 2021 with the final.