MINNEAPOLIS -- History of sorts was made Sunday at Ridder Arena. After the No. 2-ranked University of Minnesota’s women’s hockey team and No. 1 Wisconsin skated through a scoreless five-minute overtime period, the WCHA’s new format came into play.

A 3-on-3 second OT period failed to produce a goal, thus officially making the game a 2-2 tie. The league’s new shootout format was then used, and when Amy Potomak tucked a shot just under the crossbar, the Gophers earned an extra two points and gave coach Brad Frost a lot of satisfaction.

“To take five out of six points from Wisconsin is great,” Frost said. “It was an exciting game with a lot of momentum shifts.”

For 43 minutes, it appeared Minnesota (10-1-1 overall, 6-1-1 WCHA) had things going its way in front of an announced crowd of 2,645. Taylor Heise’s tip in of a Gracie Osterhag point shot in the first period gave the Gophers a 1-0 lead. At the other end of the ice, goalie Sydney Scobee was handling every Badger shot sent her way flawlessly with few second chances available.

“We were defending fairly well against a tough team to defend against,” Frost said.

The Badgers average five goals per game and had not been held under three goals in a game all season until Saturday’s 4-2 Minnesota win.

However, when Wisconsin forward Britta Curl stole the puck and beat Scobee upstairs to tie the score 1-1, everything seemed to change. “There were a lot of turnovers in that period,” Scobee said. “That brought out a lot of emotion.”

The play began to open up on both ends of the ice.

In turn, this translated into two more goals scored just 81 seconds apart. Sarah Potomak gave Minnesota a 2-1 lead at 5:40, but Wisconsin’s Sara Greig matched it at 7:01. The Badgers pressed hard but Scobee held firm, making nine saves to force the extra sessions. “Sarah was great all weekend,” Frost said.

The 5-on-5 overtime format has been in play for a while in the WCHA. Wisconsin outshot Minnesota 4-0 in that session with Scobee making some acrobatic stops.

The 3-on-3 second OT format is new this year. “We’ve only practiced it twice,” Frost said. “It’s so different than anything else we do.”

The teams kept rotating two forwards and a defender. The open ice meant that nearly every save made by Scobee, who faced five shots, and Wisconsin’s Kristen Campbell, who stopped two, came on quality chances.

This led to the second major rule change. WCHA women’s shootouts are now 1-on-1 affairs instead of the best-of-3 used by the NHL. Emily Brown, a junior, went first for the Gophers and was stopped by Campbell. Daryl Watts, who is the top women’s scorer in the country with 10 goals and 19 assists, stepped up for the Badgers but Scobee thwarted her shot.

Amy Potomak was next. In practice, the sophomore had experimented with a move that ended with a shot intended for an upper corner. “I hadn’t done it in a game, but Brad told me to give it a try,” she said.

It worked.

Abby Roque, a nine-goal scorer, then shot wide for the Badgers, and Minnesota had a successful end to a big series.

Wisconsin, which entered the weekend No. 1 in the country in both polls with a 10-0 mark, heads back to Madison with a 10-1-1 record (4-1-1 WCHA).

It wasn’t quite a six-point sweep — Minnesota hadn’t managed to do that against Wisconsin since Feb. 19-20, 2016 — but it was close. “I’m very happy with five points,” Frost said. The Gophers have a rematch with the Badgers in Madison on Jan. 24-25.

Minnesota next faces a different kind of challenge. Division III power Hamline, coached by former Gophers star Natalie Darwitz, visits Ridder Arena for an exhibition game at 7 p.m. Tuesday. The Gophers return to WCHA play at home against Bemidji State on Nov. 15-16.