The 2026 MLB postseason is scheduled to begin on Tuesday, Sept. 29. Here’s where the Seattle Mariners sit in the current MLB playoff picture:
Mariners Playoff Chances
The Mariners’ playoff odds are +8000, which gives them an implied probability of 1.23%.
Here’s how Seattle’s postseason odds compare to the rest of the AL West:
- Astros: -450
- Rangers: +165
- Mariners: +8000
- Athletics: OTB
- Angels: OTB
Mariners Playoff Seed
If the season ended today, the Mariners wouldn’t be in the American League playoffs. They trail the final wild-card spot by seven games.
Here’s a look at the current AL bracket:
Last Time the Mariners Made the Playoffs
The Mariners made the playoffs in 2025, falling in seven games to the Toronto Blue Jays in the ALCS.
Seattle hasn’t made it past the ALCS in its franchise history.
Mariners Playoff History
| Year | Round | Opponent | Result |
|---|---|---|---|
| 2025 | ALCS | Blue Jays | Lost, 4-3 |
| 2025 | ALDS | Tigers | Won, 3-2 |
| 2022 | ALDS | Astros | Lost, 3-0 |
| 2022 | ALWC | Blue Jays | Won, 2-0 |
| 2001 | ALCS | Yankees | Lost, 4-1 |
| 2001 | ALDS | Cleveland | Won, 3-2 |
| 2000 | ALCS | Yankees | Lost, 4-2 |
| 2000 | ALDS | White Sox | Won, 3-0 |
| 1997 | ALDS | Orioles | Lost, 3-1 |
| 1995 | ALCS | Cleveland | Lost, 4-2 |
| 1995 | ALDS | Yankees | Won, 3-2 |
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