By 1946, the American Basketball League was losing players and teams to both the NBL and BAA, and was no longer considered a major league. It folded entirely after the 1953 season.
First Round
Semi-Finals
ABL Champ.
0
TRE 2
JC 1
PHI 2
PHI 1
TRE 2
BKN 1
BAL 2
BAL 0
TRE 1
Champ
TRE
1946-47 ABL Champion Trenton Tigers
z: best record, c: conference winner, y: division winner, w: wildcard, x: clinched playoff spot
Trenton declared league champion when Baltimore refused to participate in finals.

Semi-Finals

Best of 3-game series
Date    OpponentResultScoreSeries
???vs Bkn. GothamsL  66-80 0-1
???vs Bkn. GothamsW  80-53 1-1
???vs Bkn. GothamsW  70-46 2-1

ABL Championship

Best of 3-game series
Date    OpponentResultScoreSeries
???at TrentonL  -2
FF
0-1