DULUTH, Minn. – Second-ranked Minnesota Duluth scored four times in the second period on Friday night, turning a 1-0 lead into a 5-0 victory over No. 15 North Dakota night at AMSOIL Arena.

Kobe Roth scored a pair of power-play goals for the Bulldogs and Hunter Shepard stopped 22 shots for his 10th career shutout, breaking Alex Stalock's program record.

The loss dropped North Dakota to 7-6-1 overall and 1-4-0 in the National Collegiate Hockey Conference (NCHC), while defending national champion UMD improved to 10-2-1 overall and 4-1-0 in the NCHC.

It was also UND's fifth straight loss at AMSOIL Arena.

After a tightly played opening 19 minutes, Roth located a loose puck during a wild goalmouth scramble and tucked it past a sprawled Peter Thome with just 5.5 seconds left in the first period. North Dakota found itself short-handed when Thome was assessed a delay-of-game for intentionally knocking the net off its pegs, trying to alert the officials that his glove had come off and played should be halted.

Instead, Roth staked the Bulldogs to the first-intermission lead.

Minnesota Duluth made it a 2-0 game on a Parker Mackay goal just 38 seconds into the second period. It was all Bulldogs from there, as Roth scored again midway through the second and Mikey Anderson and Tanner Laderoute blew it open 37 seconds part later in the period.

North Dakota head coach Brad Berry said the late first-period goal by Roth and the early second-period strike by Mackay changed the game.

"Within a matter of seconds you're down 2-0 and then from there I thought we started to do too much individually as a team and we got out of it. Those are times in a game – last shift of a period, first shift of a period – those are times when you can't give up a goal and you want to be on the other end of it," said Berry.

North Dakota, playing without forwards Nick Jones, Joel Janatuinen and Collin Adams, was unable to generate a high number of Grade A chances against Shepard. A Matt Kiersted cross bar during a first-period power play was perhaps the Fighting Hawks' most dangerous opportunity.

"Anytime you come on the road and you don't score a goal…you let one period get away on you, there's frustration for sure," said Berry. "There's got to be accountability on our part. Coaching staff, players, everybody together to try to rectify those things.

"At the same time, you've got to make sure that you're ready tomorrow and have confidence to play. We'll make sure we're accountable in all areas tomorrow."

UND was scoreless in its four power-play chances while the Bulldogs went 2-6.

"Hockey is an emotional game. There's highs, there's lows, but you can't ride that too much. You've got to stay even and level-headed. I think we just let it slip away a little bit," said senior defenseman Hayden Shaw.

"We can't have one good weekend, one bad weekend," continued Shaw. "Consistency is what we need to focus on. That's not our way. Tomorrow is obviously a must-win, but our pride's on the line, too. That's not us, and that's not how we're going to play."

The Fighting Hawks and Bulldogs will square off at 7:07 pm Central on Saturday.

Notes: Minnesota Duluth had a 30-22 edge in shots on goal … Roth, Mackay and Anderson were the game's three stars … UND's Dixon Bowen and UMD's Nick Wolff were given game misconducts in the second period for face-masking … Attendance was 6,787 … UND freshman goalie Adam Scheel replaced Thome late in the second period after the fifth goal and stopped all seven shots he faced the rest of the way.