The World Series began as a best-of-9 championship in 1903, but was changed to a best-of-7 in 1905. It reverted to a best-of-9 briefly, in 1919-1921.
Source: MLB.com
The World Series began as a best-of-9 championship in 1903, but was changed to a best-of-7 in 1905. It reverted to a best-of-9 briefly, in 1919-1921.
Source: MLB.com