| Most Seasons Over .500 | |
|---|---|
| Team | Seasons |
| Boston Red Sox | 37 |
| Toronto Blue Jays | 30 |
| Chicago White Sox | 29 |
| Montreal Expos | 29 |
| Chicago Cubs | 28 |
| Seattle Mariners | 27 |
| St. Louis Cardinals | 26 |
| Oakland Athletics | 23 |
| San Diego Padres | 23 |
| Texas Rangers | 23 |
| New York Mets | 22 |
| San Francisco Giants | 22 |
| Colorado Rockies | 21 |
| Arizona Diamondbacks | 19 |
| Kansas City Royals | 19 |