Meghan Dufault and Amy Menke each scored twice as North Dakota upset the Gophers 4-3 in women's hockey on Friday at Ralph Engelstad Arena.
The No. 1-ranked Gophers (9-1-0, 7-1-0 WCHA) had won the series opener 5-1 on Thursday.
But No. 7 UND (6-2-2, 4-2-2-1) took control of the second game with three goals in the middle period to take a 3-1 lead. Menke scored at 62 seconds for the home team to tie the score at 1-all.
Dufault then scored twice within nine seconds in the 15th minute.
Kelley Pannek got the Gophers within 3-2 seven minutes into the third. But UND quickly answered on Menke's breakaway at 8:46.
Dani Cameranesi's 10th goal of the season got the Gophers within one goal again with 2:39 left, but the rally ended there.
"It just felt like right from the drop of the puck we didn't have the jump that we did last night, in particular in the first and second," Gophers coach Brad Frost said. "A great attempt at a comeback there in the third."
Amanda Leveille had 27 saves for the Gophers, Shelby Amsley-Benzie 28 for UND.