10 teams participates in the league and each will play 49 games during the regular season.
The winner of the playoffs will be declared the Champion of Mestis and will participate in the promotion series to Liiga.
Those teams finishing ninth and tenth will play a series to avoid relegation to Suomi-Sarja.
The following team changes have happened for the 2024–25 season: Promoted from Suomi-sarja Relegated from Liiga Promoted to Liiga Relegated to Suomi-sarja Other The regular season consists of 49 matches.
[1] For the first time since the summer of 2013, the promotion playoffs will make a comeback.