Seattle Mariners playoff record
23-28Seattle Mariners · Postseason history
The Seattle Mariners have played 6 postseasons since 1993, winning 5 of 11 series and 23 of 51 games. Most recently they lost the 2025 League Championship Series to the Toronto Blue Jays 3-4. They have never won a World Series title.
| 2025 | League Championship Series |  Toronto Blue Jays | Lost 3-4 |
| 2025 | Division Series |  Detroit Tigers | Won 3-2 |
| 2022 | Division Series |  Houston Astros | Lost 0-3 |
| 2022 | Wild Card round | Toronto Blue Jays | Won 2-0 |
| 2001 | League Championship Series |  New York Yankees | Lost 1-4 |
| 2001 | Division Series |  Cleveland Guardians | Won 3-2 |
| 2000 | League Championship Series | New York Yankees | Lost 2-4 |
| 2000 | Division Series |  Chicago White Sox | Won 3-0 |
| 1997 | Division Series |  Baltimore Orioles | Lost 1-3 |
| 1995 | League Championship Series | Cleveland Guardians | Lost 2-4 |
| 1995 | Division Series | New York Yankees | Won 3-2 |
