1990-91 Division I Playoffs
| Team 1 | (pts) | vs | Team 2 | (pts) | Date | Time | Location |
|---|---|---|---|---|---|---|---|
| #4 Plattsburgh (11-7-0) | (3) | vs | #5 OFA (10-12-0) | (5) | 2/18/91 | Plattsburgh Arena | |
| #2 Massena (18-5-0) | (3) | vs | #3 Seton-Catholic (12-11-0) 2 OT | (4) | 2/20/91 | Massena Arena | |
| #1 Potsdam (20-3-0) | (2) | vs | #4 OFA (11-12-0) | (0) | 2/20/91 | Pine Street Arena | |
| #3 Seton-Catholic (13-11-0) | (2) | vs | ##1 Potsdam (21-3-0) | (1) | 2/23/91 | SLU Appleton Arena |
