The Spanish Football League A consists of 20 teams, which adopt a double round robin competition system (each team plays with other teams twice as a host and away team respectively). The calculation method of points in a single game is that the winner gets 3 points, the loser gets 0 points, and both sides get 1 point in a draw. At the end of the season, the points are ranked according to the accumulated points. The two teams with the same points will be determined by their mutual achievements this season; The results of each other are still equal, which is determined by the goals; If three or more teams have the same score, it is determined by the special scoreboard formed by the results of this season's matches between teams.