More than enough for New York to pick up its first win.
Sorokin made 39 saves and Oliver Wahlstrom scored twice in the third period, helping the Islanders beat the Chicago Blackhawks 4-1 on Tuesday night.
"A step in the right direction, for sure," forward Cal Clutterbuck said.
Clutterbuck and Anthony Beauvillier also scored as New York improved to 1-2-0 on its opening 13-game road trip. The Islanders don't play their first home game at the new UBS Arena until Nov. 20.
Chicago outplayed New York for long stretches in its home opener, but remained winless during a sluggish 0-3-1 start. Coach Jeremy Colliton was booed by the crowd during pregame introductions, and there were more boos as the Islanders pulled away in the third.
"It's not as if we didn't generate enough chances. We did," Colliton said, "and I thought defensively we were much better.
"So if we play that game over and over again, and certainly the first two periods, we play that game over and over again the results will tilt our way."
MacKenzie Entwistle scored for Chicago with 26 seconds left, and Marc-Andre Fleury made 25 stops.
The Blackhawks have been outscored 17-8 this season. They haven't led in any of their four games.
"It's frustrating, no doubt," captain Jonathan Toews said. "But whenever you go through that you have a choice, and the only choice for us is just to keep working through it."
New York scored three times in the third. Wahlstrom made it 2-0 when he intercepted an errant pass by Henrik Borgstrom and eluded sliding defenseman Jake McCabe before beating Fleury through the goaltender's legs 48 seconds into the period.
Wahlstrom then scored from the left circle at 8:51, and Clutterbuck made it 4-0 with his first of the season at 11:06.
The 21-year-old Wahlstrom also scored during New York's 5-1 loss at Florida on Saturday night.
"When Wally gets open, he can shoot it as good as any young player in the league," Islanders coach Barry Trotz said.
Chicago forward Mike Hardman left about eight minutes into the third after absorbing a big hit by Matt Martin. It was Hardman's first game after he was recalled from the minors on Monday.
Blackhawks winger Jujhar Khaira then fought with Martin, but it wasn't enough to wake up his struggling team.
The Islanders got Martin back after the forward missed the first two games because of offseason ankle surgery, but Anders Lee was scratched because of an illness. The team said it wasn't COVID-19 related.
Chicago put together a strong start, outshooting New York 18-9 in the first period. But Sorokin was solid in net, and the Islanders started to play better at the start of the second.
Beauvillier dug the puck out from behind the net and slammed it home for a 1-0 lead 4:08 into the period. It was Beauvillier's first goal of the season after he had 15 last year.
New York had a chance to add to its lead when Chicago defenseman Seth Jones was sent off for hooking with 2:06 left. But the Blackhawks killed the penalty.
Alex DeBrincat got loose for a short-handed breakaway late in the second, but was denied by Sorokin.
"He definitely bailed us out in that first period there. He's a world-class goalie," Wahlstrom said. "He's tough to score on in practice."
Islanders goaltender Semyon Varlamov is practicing with the team again. He opened the season on injured reserve with what the club described as "soreness."
"Varly's feeling pretty good. ... Hopefully we get to the weekend and he might become available," Trotz said during his pregame availability.
The Blackhawks paid tribute to longtime goaltender Tony Esposito with a pregame video that included fellow Hall of Famer Chris Chelios leading the crowd in chants of "Tony! Tony!" Esposito died in August following a brief battle with pancreatic cancer.
Islanders: Visit the Columbus Blue Jackets on Thursday night.
Blackhawks: Host the Vancouver Canucks on Thursday night.
Jay Cohen can be reached at https://twitter.com/jcohenap
Islanders notch first win of the season behind Wahlstrom's double
Oliver Wahlstrom scores twice in the third period and Ilya Sorokin makes 39 saves to help the Islanders to a 4-1 win over the Blackhawks.