Baseball Postseason Series Won, 1903-2020

Note: Includes pre-1969 Playoffs for the Pennant. Ties broken by most World Series won, then most Pennants, then by most recent postseason series won.

1. New York Yankees: 56
2. St. Louis Cardinals: 30
3. Boston Red Sox: 23
4. Los Angeles Dodgers: 21 (22 if you count Brooklyn)
5. San Francisco Giants: 15 (21 if you count New York)
6. Oakland Athletics: 13 (22 if you count Philadelphia)

7. Atlanta Braves: 13 (15 if you count Boston and Milwaukee)
8. Baltimore Orioles: 12

9. New York Mets: 12

10. Houston Astros: 12

11. Chicago Cubs: 11
12. Cincinnati Reds: 11
13. Detroit Tigers: 11
14. Cleveland Indians: 11

15. Philadelphia Phillies: 10
16. Kansas City Royals: 9
17. Pittsburgh Pirates: 8
18. Miami Marlins: 7

19. Toronto Blue Jays: 7
20. Minnesota Twins: 6 (7 if you count Washington Senators)
21. Arizona Diamondbacks: 5
22. Chicago White Sox: 5
23. Tampa Bay Rays: 5

24. Los Angeles Angels: 5
25. Washington Nationals: 4 (5 if you count Montreal Expos)
26. Colorado Rockies: 4
27. San Diego Padres: 4

28. Texas Rangers: 4
29. Seattle Mariners: 4
30. Milwaukee Brewers: 3