1930s
| Year | American League Champion | National League Champion | World Series Champion |
|---|---|---|---|
| 1930 | Philadelphia Athletics | St. Louis Cardinals | Philadelphia Athletics (4-2) |
| 1931 | Philadelphia Athletics | St. Louis Cardinals | St. Louis Cardinals (4-3) |
| 1932 | New York Yankees | Chicago Cubs | New York Yankees (4-0) |
| 1933 | Washington Senators | New York Giants | New York Giants (4-1) |
| 1934 | Detroit Tigers | St. Louis Cardinals | St. Louis Cardinals (4-3) |
| 1935 | Detroit Tigers | Chicago Cubs | Detroit Tigers (4-3) |
| 1936 | New York Yankees | New York Giants | New York Yankees (4-2) |
| 1937 | New York Yankees | New York Giants | New York Yankees (4-1) |
| 1938 | New York Yankees | Chicago Cubs | New York Yankees (4-0) |
| 1939 | New York Yankees | Cincinnati Reds | New York Yankees (4-0) |
Read more about this topic: List Of Major League Baseball Seasons