Birmingham won the first half of the season, Chicago won the second half, and met in a play off series. The NNL and the NAL faced each other in the Negro World Series at the end of the season to determine an overall champion.
NAL Champ.
World Series
CHI 2
BBB 3
Champ
HOM
1943 NAL Champion Homestead Grays
z: best record, c: conference winner, y: division winner, w: wildcard, x: clinched playoff spot

NAL Championship

Best of 5-game series
Home/Away matchups are not known.
Date    OpponentResultScoreSeries
???vs Chi. AmericanW  0- 1-0
???at Chi. AmericanL  -0 1-1
???vs Chi. AmericanW  0- 2-1
???at Chi. AmericanL  -0 2-2
???vs Chi. AmericanW  0- 3-2

Negro World Series

Best of 7-game series
Date    OpponentResultScoreSeries
9/21at HomesteadW  4-2 1-0
???at HomesteadT  5-5 1-0
???at HomesteadL  3-4 1-1
???at HomesteadL  0-9 1-2
???vs HomesteadW  11-10 2-2
???vs HomesteadL  0-8 2-3
???vs HomesteadW  1-0 3-3
10/5vs HomesteadL  4-8 3-4