The 2025 MLB postseason is scheduled to begin on Tuesday, Sept. 30. Here’s where the Seattle Mariners sit in the current MLB playoff picture:
Mariners Playoff Chances
The Mariners’ playoff odds are off the board, as they have clinched a postseason berth. They were -115 in the preseason.
Here’s how Seattle’s postseason odds compare to the rest of the AL West:
- Angels: OTB
- Astros: +300
- Athletics: OTB
- Rangers: OTB
Mariners Playoff Seed
If the season ended today, the Mariners would be the No. 2 seed in the American League. That would give them a bye in the Wild Card round.
Here’s the current AL bracket:
Last Time the Mariners Made the Playoffs
The Mariners haven’t made the postseason since 2022, which marked their first playoff appearance since 2001.
Seattle hasn’t made it past the ALCS in its franchise history.
Mariners Playoff History
| Year | Round | Opponent | Result |
|---|---|---|---|
| 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 |
MLB Odds at BetMGM
The BetMGM online sportsbook is your ticket for baseball odds throughout year. Whether you’re looking for college baseball odds, MLB odds, or anything else there are baseball betting opportunities for everyone.
Sign in to your account today — or, if you don’t have an account, sign up today with a sportsbook welcome bonus — to start betting. And don’t forget to check updated sportsbook bonuses and promos each day of the year.
The content provided in this blog is intended for entertainment purposes only. All views and opinions expressed are the authors and reflect their individual perspectives on sports, betting, and related topics. This content should not be considered professional betting advice or the official views of BetMGM LLC. Please gamble responsibly. If you or someone you know is experiencing issues related to gambling, seek help from a licensed health professional. This blog is not liable for any losses, damages, or consequences resulting from betting activities.
