Nolan Walker scored on a redirection with 53.2 seconds left and St. Cloud State held off Minnesota State 5-4 on Thursday night to advance to the program's first national championship game.
St. Cloud State (20-10-0) led 3-1 early in the second period and trailed 4-3 with 15 minutes remaining before winning its 10th one-goal game of the season.
"I was just really glad our guys didn't get down, they stuck with it, they found a way to get a puck to the net," St. Cloud State coach Brett Larson said. "Joe Molenaar coming up with a huge goal, just being inserted into the lineup, and obviously getting into the tough areas and tipping one in late."
Minnesota State took its first lead, 4-3, at the Frozen Four 4:18 into the third period on Dallas Gerads' tap-in shot of Walker Duehr's centering pass.
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But Molenaar, a freshman, tied it at 4 with his first career goal midway through the third, and Walker got a stick on defenseman Seamus Donohue's shot to win it.
David Hrenak made 25 saves for the Huskies, who were without their leading scorer Easton Brodzinski due to a season-ending injury in the East Regional.
St. Cloud State opened the scoring 3:18 into the game with a power-play goal by captain Spencer Meier. Ten seconds after Nathan Smith tied it at 1 on another power play, Kyler Kupka finished Walker's individual effort by sending a shot into a gaping net to give the Huskies a 2-1 lead.
Will Hammer, a fourth-line center, made it 3-1 early in the second period by capitalizing on a turnover for an unassisted goal.
Duehr pulled Minnesota State within 3-2 midway through the second by sending in a rebound for his 10th goal of the season. Less than a minute later, Minnesota State had another power play and Smith tied it when he roofed a wrist shot for his fourth goal in three games.
Minnesota State (22-5-1) goaltender Dryden McKay, who remains two shutouts shy of tying the NCAA record at 26, made 17 saves.