North Dakota’s Connor Gaarder scored 1:28 into the second overtime to push UND, the last at-large team to make the NCAA field, to a 2-1 win over WCHA regular-season champion Ferris State and earn the NCHC program’s 20th trip to the Frozen Four.
Last season, the last team to make the field was eventual champion Yale, which also won the Midwest regional.
NCHC regular-season champion St. Cloud State’s Nic Dowd scored in overtime to knock off Notre Dame and set up a rematch with No. 1 overall seed Minnesota on Sunday.
Boston College’s Johnny Gaudreau scored three goals and added three assists in a 6-2 win over NCHC postseason champion Denver to end the Pioneers season.
UMass-Lowell defeated WCHA playoff champ Minnesota State 2-1 to set up an all-Hockey East regional final against the Eagles.
ECAC champion Union downed Providence 3-1 to advance out of the East regional to Philadelphia.
All times MT
No. 3 Union 5, Vermont 2
Providence 4, Quinnipiac 0
Union 3, Providence 1
Ferris State 1, Colgate 0
North Dakota 5, No. 4 Wisconsin 2
North Dakota 2, Ferris State 1 2OT
St. Paul, Minn.
No. 1 overall seed Minnesota 7, Robert Morris 3
St. Cloud State 4, Notre Dame 3 OT
Regional final, 5:30 p.m. ESPNU
No. 2 Boston College 6, Denver 2
UMass-Lowell 2, Minnesota State 1
Regional final, 3 p.m. ESPNU
Semifinals, April 10
Both ESPN2, Times TBA
BC/Lowell winner vs. Union
North Dakota vs. Minn./SCSU
National championship. April 12
Semifinal winners, ESPN, 5:30 p.m.