Currently, five Major League Baseball (MLB) franchises have never secured a World Series championship. These teams are the Colorado Rockies, Milwaukee Brewers, San Diego Padres, Seattle Mariners, and Tampa Bay Rays.
Teams Without a World Series Title
Among the teams that have never won the World Series, their history regarding appearances in the championship series varies:
- Seattle Mariners: This is the only MLB franchise that has never even appeared in a World Series.
- Milwaukee Brewers, San Diego Padres, Tampa Bay Rays, and Colorado Rockies: These four teams have all played in the World Series but have not won the championship. The San Diego Padres and Tampa Bay Rays have each appeared in the Series twice without securing a win.
Here is a detailed look at these teams:
| Team | Status Regarding World Series Appearance | Notes |
|---|---|---|
| Colorado Rockies | Appeared but never won | Have played in the Series but have not won a championship. |
| Milwaukee Brewers | Appeared but never won | Have played in the Series but have not won a championship. |
| San Diego Padres | Appeared (twice) but never won | Played in the World Series twice but did not win on either occasion. |
| Seattle Mariners | Never appeared | The only MLB franchise to have never played in a World Series. |
| Tampa Bay Rays | Appeared (twice) but never won | Played in the World Series twice but did not win on either occasion. |
