They were soon followed by the Calgary Flames, who with their five-game loss to the Colorado Avalanche, ensured that for the first time in NHL history,[2] neither of the conference number one seeds advanced to the second round.

Also for the first time since 2012, none of the previous year's Conference finalists (the Capitals, the Lightning, the Golden Knights, and the Jets) made it to the second round.

[4] Matt Duchene scored a goal and two assists for Columbus in game two, granting the Blue Jackets a 5–1 victory and a 2–0 series lead.

[6] During said game, Sergei Bobrovsky made 30 saves, giving the Blue Jackets a 3–1 victory and their first 3–0 series lead in franchise history.

[13] In game three, Auston Matthews and Andreas Johnsson scored a goal and notched an assist, leading the Maple Leafs to a 3–2 victory.

[14] In game four, the Bruins held on for a 6–4 victory, keeping the Maple Leafs from tying in the closing minutes after leading by three goals in the third period.

[17] In the seventh game, Boston goalie Tuukka Rask made 32 saves to defeat the Maple Leafs 5–1 and advance to the second round.

[20] In game three, Carolina forward Warren Foegele scored twice and assisted once as the Hurricanes limited the Capitals to 18 shots in a 5–0 blowout victory.

[23] In game five, the Capitals blew out the Hurricanes 6–0 with Backstrom scoring two goals and adding two assists, as goaltender Braden Holtby stopped all 30 shots he faced.

In game one, New York goalie Robin Lehner made 41 saves and Josh Bailey scored 4:39 into overtime to give the Islanders a 4–3 victory.

[29] Game four was a tight-checking, defensive affair as the Islanders kept a one-goal lead over the Penguins for two periods until an empty-net goal by Bailey sealed the victory for New York defeating Pittsburgh 3–1 and advancing to the second round in a 4–0 sweep.

[31] In game two, both teams played defensively forcing an overtime period in which Nashville forward Craig Smith scored to give the Predators a 2–1 victory.

[34] In game five, Alexander Radulov scored twice with captain Jamie Benn assisting thrice for the Stars taking the series lead in a 5–3 victory.

The St. Louis Blues also earned 99 points, but they finished third in the Central Division as Winnipeg won the first tie-breaker of combined regulation and overtime wins.

[38] Game four remained scoreless until the third period in which both teams notched a goal; however, in overtime Connor scored the winning-goal for the Jets tying the series 2–2 in a 2–1 affair.

[44] In game four, Colorado came back from a two-goal deficit to force overtime and Mikko Rantanen scored his second of the night to give the Avalanche a 3–2 victory and a 3–1 series lead.

[49] In game four, Max Pacioretty had two goals and two assists while goaltender Marc-Andre Fleury stopped all 28 shots granting Vegas a 5–0 victory and a 3–1 series lead.

[51] In game six, the Sharks evened the series with a double-overtime short-handed goal by Tomas Hertl, backstopped by Martin Jones who made 58 saves in a 2–1 victory.

At 18:19 of the first overtime, Barclay Goodrow scored the series-winning goal for the Sharks, coming back from a 3–1 series deficit and defeating the Golden Knights 5–4.

[55][56] The Sharks became just the second team in NHL history, along with the 2013 Boston Bruins, to overcome a three-goal deficit in the third period of a seventh game.

[57] Game two required overtime again with both teams tied 2–2 in regulation, and in double-overtime Matt Duchene scored on the power-play at 3:42 to give Columbus the victory.

[59] In game four, Patrice Bergeron scored twice and goaltender Tuukka Rask made 39 saves to edge Columbus 4–1 and tie the series 2–2.

[60] The Bruins held off the Blue Jackets two-goal rally in game five with David Pastrnak scoring with 1:28 left in the third period to give Boston a 4–3 victory and a 3–2 series lead.

[63] In game two, Warren Foegele and Nino Niederreiter scored 48 seconds apart in the third period to take the lead 2–1 giving Carolina the victory.

[71] In game seven, although Stars goaltender Ben Bishop made a valiant effort stopping 52 shots, Patrick Maroon's goal at 5:50 of double-overtime sent the Blues to the Western Conference Final defeating Dallas 2–1.

[78] In game seven, Burns had two assists, including one on Joonas Donskoi's series-winning goal, that helped the Sharks win 3–2 and advance to the conference finals.

[81] In game three, Bruins goalie Tuukka Rask made 35 saves in Boston's close 2–1 victory, taking a 3–0 series lead.

[87] The Blues were undeterred by this blatant non-call as goalie Jordan Binnington made 29 saves in game four en route to a 2–1 victory.

[89] The Blues shut down the Sharks in game six, scoring five goals in a 5–1 victory and advancing to the Stanley Cup Finals and ending its 49-year appearance drought.

Bell publicly condemned the action, and stated it would offer the Sportsnet networks as a free preview to affected subscribers for the duration of the dispute, so that viewers still have access to the English-language broadcasts.