The Seattle Mariners last won a playoff series in 2025, defeating the Detroit Tigers 3-2 in the American League Division Series.
Seattle fell to the Toronto Blue Jays in seven games in the ALCS.
Last Time the Seattle Mariners Won an AL Pennant
The Mariners have never won the American League pennant since 1977.
Seattle has made it to the ALCS three times, losing in 1995, 2000, and 2001.
Last Time the Seattle Mariners Won the World Series
The Mariners are one of five teams that have never won the World Series, joining a list that includes the San Diego Padres, Milwaukee Brewers, Colorado Rockies, and Tampa Bay Rays.
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