1990-91 Division III Playoffs
| Team 1 | (pts) | vs | Team 2 | (pts) | Date | Time | Location |
|---|---|---|---|---|---|---|---|
| #4 Alex Bay (9-11-0) | (5) | vs | #5 Beekmantown (5-19-0) | (3) | 2/19/91 | Alex Bay Arena | |
| #2 North East Clinton (9-12-0) | (2) | vs | #3 Thousand Islands (13-9-0) | (6) | 2/21/91 | Rouses Point Civic Center | |
| #1 Tupper Lake (10-12-2) 4 OT W Shoot-Out | (1) | vs | #4 Alex Bay (10-11-0) | (1) | 2/21/91 | Tupper Lake Civic Center | |
| #3 Thousand Islands (14-9-0) | (6) | vs | #1 Tupper Lake (11-12-1) | (3) | 2/23/91 | SLU Appleton Arena |
