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Mariners and Blue Jays Clash in Epic ALCS Battle for World Series Berth
11 Oct
Summary
- Mariners and Blue Jays to meet in 2025 ALCS
- Mariners outlasted Tigers in 15-inning ALDS Game 5
- Blue Jays reach first ALCS since 2016, last World Series in 1993

On October 11, 2025, the Seattle Mariners and Toronto Blue Jays will begin their battle for a spot in the 2025 World Series as they face off in the American League Championship Series (ALCS). The Mariners earned their place in the ALCS by outlasting the Detroit Tigers in a thrilling 15-inning Game 5 of the ALDS on October 6th, the longest winner-take-all playoff game in MLB history.
Meanwhile, the Blue Jays punched their ticket to the ALCS by defeating the New York Yankees in four games. This will be Toronto's first ALCS appearance since 2016, and their second in as many years. The Blue Jays last reached the World Series in 1993, when they defeated the Philadelphia Phillies in six games, capped off by Joe Carter's iconic walk-off home run in Game 6.
The Mariners and Blue Jays split their regular-season series 4-2 in 2025, with Toronto sweeping Seattle in a three-game series in May. The Mariners, however, won two of three when the teams met in Toronto in April. This best-of-seven ALCS will be hosted by the team with the better regular-season record.