On this page you will find the Stanley Cup Playoff results for each season. You will see the result of every 7-game series during that particular season’s playoffs.
1990 Stanley Cup Playoff data
| Round | Winner (Seed) | Loser | Length | Sweep |
| Prelim | Boston Bruins (High) | Hartford Whalers | 7 games | |
| Prelim | Montreal Canadiens (Low) | Buffalo Sabres | 6 games | |
| Prelim | New York Rangers (High) | New York Islanders | 5 games | |
| Prelim | Washington Capitals (Low) | New Jersey Devils | 6 games | |
| Prelim | Chicago Blackhawks (High) | Minnesota North Stars | 7 games | |
| Prelim | St. Louis Blues (High) | Toronto Maple Leafs | 5 games | |
| Prelim | Los Angeles Kings (Low) | Calgary Flames | 6 games | |
| Prelim | Edmonton Oilers (High) | Winnipeg Jets (original) | 7 games | |
| Qtrs | Boston Bruins (High) | Montreal Canadiens | 5 games | |
| Qtrs | Washington Capitals (Low) | New York Rangers | 5 games | |
| Qtrs | Chicago Blackhawks (High) | St. Louis Blues | 7 games | |
| Qtrs | Edmonton Oilers (High) | Los Angeles Kings | 4 games | Sweep |
| Semis | Boston Bruins (High) | Washington Capitals | 4 games | Sweep |
| Semis | Edmonton Oilers (Low) | Chicago Blackhawks | 6 games | |
| Finals | Edmonton Oilers (Low) | Boston Bruins | 5 games |