With 16 seconds left in the second period, junior center Nathan Smith put in a rebound and his goal was the only one Minnesota State Mankato needed to edge Notre Dame 1-0 on Saturday in the championship game of the Albany (N.Y.) Regional.
Senior goalie Dryden McKay made 23 saves for the shutout — his 10th this season, extending his NCAA career record to 34.
The victory was the 17th in a row for the Mavericks (37-5),
who advance to the Frozen Four on April 7 and 9 at the TD Garden in Boston.
Brendan Furry took the initial shot from the left side before the lone goal. Fighting Irish goalie Matthew Galajda stopped it, but the rebound went into the slot and Smith had an open right side for his 19th goal.
Smith also had 31 assists, giving him 50 points this season. Only three other Mavericks have reached that milestone in the team's Division I era.
McKay, one of three finalists for the Mike Richter Award as the top goaltender in the country, is 37-4 this season. That win total extends another of McKay's NCAA records.
Galajda had 32 saves for Notre Dame (28-12).