The relegation rules of the Portuguese Super League are that the last two teams of each season will be relegated to the Portuguese Second Division. In addition, the 16th place in the league will also participate in the play-offs. If they fail to win, they will be relegated to the Portuguese Second Division.

The Portuguese Super League is the highest level professional football league in Portugal. The promotion and relegation system of the Portuguese Super League is very strict. The last two teams of each season will be relegated to the Portuguese Second Division, while the top two teams of the Portuguese Second Division will be promoted to the Portuguese Super League. In addition, the Portuguese Super League also has a play-off, which is usually participated by the 16th-placed teams in the Portuguese Super League and the 3rd to 6th-placed teams in the Portuguese Second Division. The winner can qualify for the Portuguese Super League.

The Portuguese Super League adopts a double round-robin system. Each team needs to play two games with the other 17 teams, one home game and one away game. There are three penalties in each game, with the winner receiving three points, a draw each worth one point, and the loser receiving no points. If two teams have the same points, they will be ranked in order of goal difference, number of goals scored, head-to-head results and total goals scored.

Historical development of the Portuguese League

The first Portuguese league was held in 1938. It was renamed the Portuguese Serie A in 1999 and was renamed the Portuguese Super League starting from the 2002/03 season. Since the Portuguese Super League was founded in 2002, only three clubs have tasted the championship. Porto is the team that has won the most Portuguese Super League titles, winning 10 times in a row.

Since the creation of the Portuguese top league in the 1938/39 season, Benfica, Porto and Sporting CP have monopolized the championship; apart from this, only two teams have won the league championship, namely Belém in the 1945/46 season. Man and Boavista in the 2000/01 season. In the 2000/01 season, Boavista defeated Porto by 1 point to win the first Portuguese top league championship in team history. Since the reorganization into the Portuguese Super League in the 2002/03 season, the top league has become a duo of Benfica and Porto.