Kyle Tresnak scored 27 points and Davion Berry added 19 to help Weber State beat North Dakota 88-67 on Saturday in Ogden, Utah, for the Big Sky tournament championship and an automatic NCAA berth.
Joel Bolomboy added 11 rebounds for the Wildcats (19-11), who clinched their first NCAA tournament spot since 2007.
Troy Huff had 17 points and Alonzo Traylor added 15 to lead North Dakota (17-16), which trailed from start to finish. UND has lost all six meetings in its series with Weber State.
North Dakota shot just 39.3 percent from the field and trailed by double digits almost the entire second half. Weber State shot 56.6 percent from the field and 45.5 percent from the perimeter.
North Dakota 72, Montana 55: Madi Buck scored 14 points and North Dakota (23-9) advanced to the NCAA Division I tournament for the first time, beating the Grizzlies (22-11) in the championship game in Grand Forks, N.D.
Leah Szabla, Mia Lloyd and Alyssa Wall each scored 10 points for North Dakota.
Torry Hill had 21 points for Montana.