Kansas City won the first half of the season, Birmingham 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. After MLB integration in 1948, the league and its teams operated mostly as barnstorming units, and negro league baseball effectively came to an end.
NAL Champ.
World Series
KC 1
1948 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 Kansas CityW  0- 1-0
???vs Kansas CityW  0- 2-0
???at Kansas CityL  -0 2-1
???vs Kansas CityW  0- 3-1

Negro World Series

Best of 7-game series
Date    OpponentResultScoreSeries
9/26at HomesteadL  2-3 0-1
???vs HomesteadL  3-5 0-2
???vs HomesteadW  4-3 1-2
???at HomesteadL  1-14 1-3
10/5vs HomesteadL  6-10 1-4