What happens if the Tigers lose Game 5 vs the Mariners in the ALDS today?

The atmosphere in Seattle feels electric, on edge, and heavy with consequence. The Detroit Tigers and Seattle Mariners are locked in a winner-take-all Game 5 tonight, and one final run, one big swing, or one bullpen burst could end a season.

Fans and analysts alike are locked in speculation: can Detroit handle the pressure of a hostile road environment? Will Seattle’s pitching hold firm under the spotlight? With everything on the line, both teams must summon their best when it matters most.

FFor the loser, the postseason ends — bringing uncertainty, reflection, and the long road to spring training. The winner moves on to face the Toronto Blue Jays in the ALCS, one step closer to the World Series.

What’s at stake tonight for Detroit and Seattle?

If Detroit loses Game 5, their season ends:the Tigers will be eliminated from the playoffs, and the Mariners will advance to the American League Championship Series (ALCS).

Javier Báez #28 of the Tigers celebrates with Kerry Carpenter #30 after his a two-run home run against the Mariners. Duane Burleson/Getty Images

The pressure is immense on both clubs — Detroit must overcome Tarik Skubal and road adversity, while Seattle needs to fix its Game 4 bullpen collapse and seize momentum back in their home ballpark.

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What comes next after Game 5?

Regardless of who wins, the ALCS promises an exciting matchup against the Blue Jays, who await the victor after dispatching the New York Yankees in four games. For the Tigers, a win would mark their first ALCS appearance since 2013. For the Mariners, advancing would extend a remarkable season that has already reignited baseball passion across the Pacific Northwest.

One way or another, tonight’s showdown will shape each franchise’s narrative heading into 2026 — redemption for Detroit or resurgence for Seattle.