The MLB belt in the 1930s
All decades →1,528Belt games
728Title changes
8Franchises that held it
TigersHeld it longest
The reign of the decade: Athletics, from May 5, 1931, with 16 defenses.
Days with the belt, 1930s
| Detroit Tigers | 928 | 25% |
| Cleveland Guardians | 689 | 19% |
| New York Yankees | 661 | 18% |
| Minnesota Twins | 649 | 18% |
| Athletics | 312 | 9% |
| Chicago White Sox | 165 | 5% |
| Boston Red Sox | 141 | 4% |
| Baltimore Orioles | 107 | 3% |
Best reigns that began this decade
| May 5, 1931 | Athletics | 16 def. |
| May 25, 1930 | Athletics | 9 def. |
| Jun 30, 1930 | Minnesota Twins | 9 def. |
| Aug 1, 1937 | New York Yankees | 9 def. |
| Aug 20, 1939 | New York Yankees | 9 def. |
| Sep 4, 1932 | Minnesota Twins | 8 def. |
| Jun 8, 1939 | Detroit Tigers | 8 def. |
| Jul 7, 1939 | Boston Red Sox | 8 def. |
| Jun 19, 1933 | Minnesota Twins | 7 def. |
| Jun 23, 1934 | New York Yankees | 7 def. |