The Washington Capitals became the 16th No. 7 seed to beat a No. 2 seed on Wednesday night by knocking off the defending Stanley Cup champion Boston Bruins, 2-1, in overtime of Game 7. Per the Elias Sports Bureau, it was the first series in Stanley Cup history in which all seven games were decided by a one-goal margin, and only the second series to go to overtime in Game 7 with the two teams having scored the same number of goals in the series.

Of the 15 teams before this season that pulled off the upset, 11 never made it out of the second round. The other four went on to the Stanley Cup finals but none were able to hoist the Cup.

Year7-seedPlayoff result
1994Washington CapitalsLost in conference semifinals
1994Vancouver CanucksLost in Stanley Cup finals
1995San Jose SharksLost in conference semifinals
1997Edmonton OilersLost in conference semifinals
1998Montreal CanadiensLost in conference semifinals
1998Edmonton OilersLost in conference semifinals
1999Buffalo SabresLost in Stanley Cup finals
2000Pittsburgh PenguinsLost in conference semifinals
2001Toronto Maple LeafsLost in conference semifinals
2001Los Angeles KingsLost in conference semifinals
2002Ottawa SenatorsLost in conference semifinals
2003Mighty Ducks of AnaheimLost in Stanley Cup finals
2004Montreal CanadiensLost in conference semifinals
2006Colorado AvalancheLost in conference semifinals
2010Philadelphia FlyersLost in Stanley Cup finals
2012Washington Capitals???

Washington will play the New York Rangers in the second round, which will mark the third time in the past four playoffs these two teams have met. If history is any guide, it's going to be a boom or bust ending for the Capitals.

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