At the end of the season, three teams are promoted to Serie A and four teams are relegated to Serie C. The top two teams are automatically promoted. If the 3rd-placed team is 10 or more points ahead of the 4th-placed team, it is automatically promoted too, otherwise, a playoff tournament determines the third team that will be ascending. In the 2013–14 season, anywhere between two and six teams within a "playoff margin" of 14 points from the 3rd-placed team will enter the playoff tournament.