The 18-year-old left-winger had a shot on goal in 16:59 of ice time.
“It was great and I’m sure it will only get better and better, like at the start of the season (October 12), but it was great,” Slafkovsky said. “It was faster for sure, but those are small things. I’ll get used to it.
“I won a few pucks, I lost a few. I can be better. I know myself, I can play better, I can skate faster and shoot more.
It was the first pre-season game for each team.
Tomas Tatar and Graeme Clarke scored for the Devils. Mackenzie Blackwood started and made 15 saves on 16 shots for the Devils. Nico Daws came on midway through the second period and made five saves.
Cole Caufield scored for the Canadians. Jack Allen made 18 saves in 29:18, and Cayden Primeau made 11 saves on 13 shots in relief.
Caufield scored on the power play at 12:32 of the first period to give the Canadiens a 1-0 lead.
Tatar tied the game at 1-1 with a power play goal at 16:07 of the second period.
Clarke scored at 14:03 of the third period for the 2-1 final.
Central New Jersey Nico Hischier left the game after the first period due to cramps. Hischier, who is the Devils captain, had a shot on goal in 6:24 of ice time.
Video: Tatar and Clarke score in 2-1 pre-season win
Panthers 4, Predators 3 (OT): Alexander Barkov scored with one second left in overtime to give the Florida Panthers a 4-3 victory over the Nashville Predators at Bridgestone Arena in Nashville in the first preseason game for each team.
Barkov’s shot from the left circle on the run deflected.
Paul Maurice made his Florida coaching debut in the first of two split-team games between the teams. Nashville won Game 2 4-0.
Ryan Lomberg, Eetu Luostarinen and Kai Schwindt marked, and Aaron Ekblad and Santtu Kinnunen each had two assists for the Panthers. Barkov got an assist and Sergei Bobrovsky made 10 saves on 12 shots in 31:45 before being replaced by Mack Guzdawho made 12 saves.
Juuso Parssinen had a goal and an assist for the Predators. Connor Ingram made 10 saves on 12 shots in 31:17 before being replaced by Devin Cooleywho made 18 saves.
Nino Niederreiter got an assist in his debut with the Predators after signing a two-year, $8 million contract (average annual value of $4 million) on July 21.
Ryan Johansen tied it 3-3 for Nashville with 5:25 left in the third period on a deflection.
Luostarinen gave Florida a 1-0 lead with a shorthanded goal with 43 seconds left in the first period when he scored on a 2-on-1.
Schwindt made it 2-0 at 3:41 of the second period before Parssinen made it 2-1 at 4:42. Roland McKeown tied 2-2 at 11:45.
Lomberg gave the Panthers a 3-2 lead at 2:11 of the third on a rebound from the left side of the net.
Rangers 4, Islanders 1: Igor Shesterkin stopped all 14 shots he faced midway through the second period, helping the New York Rangers to a 4-1 win over the New York Islanders at Madison Square Garden in New York City.
It was the first pre-season game for each team.
K’Andre Miller scored a shorthanded goal and Brennan Othmann got two assists for Rangers. Dylan Garand made nine saves for Shesterkin, who played 31:41 after winning the Vezina Trophy last season as the NHL’s top goaltender.
Robin Salo scored for the Islanders, who lost in Lane Lambert’s first game as coach. Semyon Varlamov allowed four goals on 20 shots in 31:15 before being replaced by Jakub Skarekwho made 15 saves.
Jimmy Vesey gave Rangers a 1-0 power play lead at 10:51 of the first period with a sharp angled shot over Varlamov’s left shoulder from the right side. The 29-year-old forward, who played his first three NHL seasons (2016-19) with the Rangers, is in training camp on a pro trial contract.
Chris Kreider made it 2-0 on a rebound at 15:48.
Miller extended the lead to 3-0 with four seconds left in the period when he scored on a pass from Othmann, who chased a loose puck into the corner after an Islanders turnover.
zac jones made it 4-0 with a one-timer at 11:41 of the second period.
Salo scored at 16:10 for the 4-1 final.
Video: Kreider and Miller score in 4-1 pre-season win
Blues 4, Stars 0: Josh Leivo scored two goals and an assist for the St. Louis Blues in a 4-0 win over the Dallas Stars at American Airlines Center in Dallas.
Logan Brown had a goal and an assist for St. Louis, which won its first two preseason games. Thomas Greiss made 10 saves in the first half, and Colten Ellis made 23 saves to complete the shutout.
Anton Khudobin made 11 saves on 13 shots in the first, and Jake Oettinger made 13 saves on 15 shots for Dallas in its preseason opener.
Brown scored his third goal in two games on a rebound 13:13 into the first to make it 1-0.
Leivo made it 2-0 at 19:04, then scored again at 11:54 of the second period to give the Blues a 3-0 lead.
william bitten scored at 13:01 of the third period for the final 4-0.
Predators 4, Panthers 0: Forward Matthew Tkachuk was held without a point in his debut for the Florida Panthers, a 4-0 loss to the Nashville Predators at Bridgestone Arena in Nashville.
It was the second of two split-team matches between the teams. Visiting Florida won Game 1 4-3 in overtime.
Tkachuk, who had a shot on goal in 18:13, was acquired on July 22 in the deal that advanced Jonathan Huberdeau and defender MacKenzie Weegar to the Calgary Flames.
Ryan McDonagh got an assist in his debut for the Predators, and Matt Duchene and Mattias Ekholm each got two assists. Kevin Lankinen stopped all 13 shots he faced before being substituted midway through the second period by Yaroslav Askarov (12 stops).
Spencer Knight started in the Panthers’ goal and made 19 saves on 20 shots in 29:56. Alexander Lyons made 15 relief stops.
Philippe Forsberg gave Nashville a 1-0 lead at 14:23 of the first period. It was his first game since signing an eight-year, $68 million contract (average annual value of $8.5 million) on July 11.
Cody glass pushed to 2-0 at 8:01 of the third period from the right scores an assist from Duchene for a power play goal.
Colton Sissons made it 3-0 at 1:30 p.m. when he finished a breakaway with a backhand, and Tanner Jeannot tipped a McDonagh shot at 17:12 for the 4-0 final.
McDonagh was traded to Nashville by the Tampa Bay Lightning on July 3.
Kraken 3, Oilers 0: Matty Beniersthe No. 2 pick in the 2021 NHL Draft, scored for the Seattle Kraken in their 3-0 win over the Edmonton Oilers at Climate Pledge Arena in Seattle.
Beniers, who had nine points (three goals, six assists) in 10 NHL games last season, gave the Kraken a 1-0 lead at 2:12 of the second period.
Martin Jones stopped all 13 shots he faced in 32:15, and Joey D’accord made 15 relief saves for Seattle in its preseason opener.
Olivier Rodrigue started in goal for Edmonton and allowed one goal on nine shots in 30:00. Ryan Fanti made 16 relief stops.
Ryan Donat made it 2-0 at 14:15 of the second, and morgan geek scored shorthanded 43 seconds into the third period for the 3-0 final.
Video: Jones and Daccord combine for shutout in 3-0 win
Kings 2, Golden Knights 1 (OT): Kevin Fiala scored a goal and an assist in his debut for the Los Angeles Kings, a 2-1 overtime win over the Vegas Golden Knights at T-Mobile Arena in Las Vegas.
Fiala, a forward, was acquired by the Kings in a trade from the Minnesota Wild on June 29 and signed a seven-year, $55.125 million contract (average annual value of $7.875 million) on the following day.
He tied the game 1-1 for Los Angeles at 14:07 of the second period, then assisted on Adrian Kempepower play goal at 1:48 of overtime for the 2-1 final.
Cal Peterson stopped 10 of 11 shots in the first period for the Kings, and Phoenix Copley stopped all 23 shots he faced in relief.
Jack Eichel marked, and Phil Kessel got an assist for Vegas. Logan Thompson stopped all nine shots he faced in 30:13, and Hill of Adin made seven relief stops.
Eichel gave the Golden Knights a 1-0 lead 7:10 into the first.
Video: Kempe takes OT winner in 2-1 pre-season win
NHL.com Independent Correspondent Sean Farrell contributed to this report