The American League Championship Series (ALCS) is a best-of-seven playoff series. This means the first team to win four games in the ALCS advances to the World Series. Therefore, the ALCS can have a minimum of 4 games and a maximum of 7 games, depending on how the series progresses. For the 2025 ALCS specifically, it follows this same best-of-seven format between the Toronto Blue Jays and the Seattle Mariners, meaning they will play up to 7 games if necessary to determine who moves on to the World Series.
