From BR Bullpen

(Redirected from Double-A)

Note: For the defunct major league, see American Association.

AA or Double-A has been the second highest level of the minor leagues since 1946 when AAA was added. From 1912 through 1945 AA was the highest rank. The leagues at this level have been the:

AA after the 2021 minor league reorganization:

AA since 1946 or later until 2019:

Pre-1946 AA: