Years of existence: 37
Championships won (years): 0
Winning percentage: 0.466
No. of coaches: 18
Current owner: Howard Lincoln (CEO)
The Seattle Mariners have been around for 37 years, and yet over that time have not really come close to making the World Series. They did put together a nice seven year run from 1995 through 2001, reaching the playoffs four times including three trips to the ALCS. However, they never threatened winning those series and in the years since have fallen on hard times. From 2004 on, the Mariners have finished over .500 just twice and have ended the year dead last in their division seven times. This of course comes on the heels of their brutal first 18 years where they again finished over .500 just twice and spent six of those seasons in the basement of the standings.