They began on April 15, 2015, and ended on June 15, 2015, with the Chicago Blackhawks defeating the Tampa Bay Lightning four games to two in the Stanley Cup Finals.

[5] The Boston Bruins failed to make the playoffs for the first time since 2007 and became the first reigning Presidents' Trophy winners to miss the post-season since the Buffalo Sabres in 2008 (and the third overall).

[6] In addition, the San Jose Sharks failed to make the post-season for the first time since 2003, ending the NHL's second-longest active playoff streak.

In game one, Brian Flynn scored the game-winning goal at 17:17 of the second period, and recorded two assists as the Canadiens won 4–3.

Detroit goalie Petr Mrazek made 44 saves and Pavel Datsyuk recorded a goal and assist in a 3–2 win in game one.

In game one, Derick Brassard and Ryan McDonagh each had goals, while goaltender Henrik Lundqvist stopped 24 out of 25 shots, to help give the Rangers a 2–1 victory.

[26] In game two, Sidney Crosby scored two goals in a span of 4:39 to help give Pittsburgh a 3–1 second-period lead, en route to a 4–3 win.

[31] In game two, Washington came back from a 3–1 second-period deficit to score three unanswered goals to win, 4–3, despite being forced to start rookie goalie Philipp Grubauer in this match in place of an ill Braden Holtby.

[35] The Islanders then took Game 6, 3–1, as Nikolay Kulemin scored at 10:33 of the third period to break a 1–1 tie, and Cal Clutterbuck added an empty netter.

[41] The Wild goalie responded in game five by making 37 saves while Nino Niederreiter and Mikko Koivu scored in a span of 1:26 in the second period to win 4–1.

In game one, Nashville scored three-straight first period goals on Chicago goaltender Corey Crawford, prompting Blackhawks Head Coach Joel Quenneville to put backup Scott Darling in net.

[45] Darling was named the starter for game three and then stopped 35 Nashville shots, while Chicago scored three second-period goals to grab a 4–2 win.

[46] Game four ended at 1:00 into triple overtime when Brent Seabrook's one-timer from the blue line went past Nashville goalie Pekka Rinne into the net, giving the Blackhawks a 3–2 victory.

[55] The Canucks tied the series with a 4–1 win, as goalie Eddie Lack made 22 out of 23 saves and Alex Burrows recorded two assists.

Ryan Miller replaced Lack to start the second period, but Hiller made 28 total saves en route to a 3–1 win.

Earlier at 2:56 of the first overtime period, Kucherov's apparent winning goal was waved off after officials ruled that he pushed Carey Price's pad into the net after the Montreal goalie made the initial save.

[63] Montreal's Brandon Prust was then fined $5,000 for his postgame derogatory public comments directed toward Referee Brad Watson, which he later apologized for the day afterward.

[65] The Canadiens stayed alive in game four, as Max Pacioretty recorded a shorthanded goal and two assists, as Montreal built a 5–0 second-period lead en route to a 6–2 win.

[67] In game six, Ben Bishop stopped 18 of 19 Montreal shots, and Kucherov scored two goals, as Tampa Bay won 4–1 to take the series.

[69] The Rangers took game two, 3–2, as Chris Kreider and Dan Boyle recorded first-period goals and Henrik Lundqvist stopped 30 out of 32 shots.

[70] In game three, Braden Holtby stopped all of the Rangers' 30 shots, and Jay Beagle's second-period goal helped give the Capitals a 1–0 win.

[72] In game five, the Capitals appeared to have scored the icebreaker with 2:09 left in the second period when Matt Niskanen's shot went past Lundqvist, but officials waved off the goal and ruled that Ward interfered with the Rangers goalie.

But Kreider scored with 1:41 remaining in regulation to tie the game, 1–1, then Ryan McDonagh won it at 9:37 into overtime to give the Rangers a 2–1 victory.

[73] Game six saw Kreider score two first-period goals to help the Rangers build a 4–1 lead in the third period before holding off a late comeback by the Capitals to win 4–3.

[74] Then in game seven, Derek Stepan scored at 11:24 into overtime on a set play off the faceoff to give the Rangers a 2–1 victory and the 4–3 series win to move on to the Eastern Conference Final for the second time in as many years.

[79] In game three, Corey Crawford stopped all of Minnesota's 30 shots, and Kane's power play goal in the first period helped give the Blackhawks a 1–0 win.

Anaheim took game one, 6–1, scoring three goals apiece against both Calgary starting goalie Jonas Hiller and backup Karri Ramo.

[84] The Ducks responded with a 4–2 win in game four, as a high-sticking double minor penalty on Calgary's Joe Colborne at the end of the second period led to Matt Beleskey's power play goal to give Anaheim a 3–2 lead, followed by Patrick Maroon's empty netter.

[87] Tyler Johnson then recorded a hat trick, scoring a shorthanded, a power play and an even strength goal, as he led the Lightning to a 6–2 victory in game two.

[98] But in game six, the Blackhawks built a 3–0 second-period lead, with Duncan Keith recording an assist in each of those three goals, en route to a 5–2 win.