• In the first stage the sixteen teams were drawn, with seeding, into four groups of four teams each, with each team playing once against the twelve clubs from the other three groups. After each team had played twelve matches, the top two teams of each group qualified for the quarter-final stage. • After the completion of the first stage, the two clubs with the lowest number of points, regardless of the group, were relegated to the
Campeonato Paulista Série A2. • Quarter-finals, semi-finals and finals were played in a two-legged home and away fixture, with the best placed first stage team playing the second leg at home. • In case of a draw in any knockout stage match, the winner was decided via a
penalty shoot-out. • The two highest-placed teams not otherwise qualified qualified for the
2021 Copa do Brasil. • The top three highest-placed teams in the general table at the end of the competition who were not playing in any level of the national
Brazilian football league system qualified for the
2021 Campeonato Brasileiro Série D.
Tiebreakers The teams were ranked according to
points (3 points for a win, 1 point for a draw, 0 points for a loss). If two or more teams were equal on points on completion of the group matches, the following criteria were applied to determine the rankings: • Higher number of wins; • Superior
goal difference; • Higher number of goals scored; • Fewest red cards received; • Fewest yellow cards received; • Draw in the headquarters of the
FPF. ==Teams==