The NNL and the NAL faced each other in the Negro World Series at the end of the season to determine an overall champion.
Champ
KC
1942 NNL Champion Kansas City Monarchs
z: best record, c: conference winner, y: division winner, w: wildcard, x: clinched playoff spot

Negro World Series

Best of 7-game series
Date    OpponentResultScoreSeries
9/8vs Kansas CityL  0-8 0-1
9/10vs Kansas CityL  4-8 0-2
9/13vs Kansas CityL  3-9 0-3
9/29vs Kansas CityL  5-9 0-4