Semi-Finals
NBL Champ.
AKR 0
AKR 2
OSH 2
WHI 0
OSH 2
AKR 1
Champ
OSH
1937-38 NBL Champion Oshkosh All-Stars
z: best record, c: conference winner, y: division winner, w: wildcard, x: clinched playoff spot

Eastern Semi-Finals

Best of 3-game series
Date    OpponentResultScoreSeries
???vs Akron FirestoneW  26-21 1-0
???at Akron FirestoneW  37-31 2-0

NBL Championship

Best of 3-game series
Date    OpponentResultScoreSeries
???at OshkoshW  29-22 1-0
???vs OshkoshL  31-39 1-1
???at OshkoshL  35-37 1-2