They have never won a World Series title.
The Mariners entered the American League in 1977, the same year as the Toronto Blue Jays.
Edgar Martinez of the Seattle Mariners at .343.
Alex Rodriguez has one batting title. He won it in 1996 with the Seattle Mariners.
Lou Piniella - Seattle Mariners
Lou Piniella - Seattle Mariners
No. The Mariners have never won the AL and advanced to the World Series.
The Seattle Mariners won that year. They lost the ALCS to the Cleveland Indians.
No they have not.
Cleveland Indians VS Seattle Mariners SEATTLE won that ALDS 3-2 New York Yankees VS Seattle Mariners NEW YORK won the AL Pennant 4-2
As of the 2008 season, the Mariners have made the playoffs 4 times. They won the AL West Division title in 1995, 1997, and 2001 and were the Wild Card team in 2000.
* 2003 Jamie Moyer, Seattle Mariners
The Mariners have never won the world series.