MILWAUKEE – Ben Brust scored 17 points, and second-seeded Wisconsin devastated American with a 22-5 run to close the first half to win 75-35.
The second-seeded Badgers (27-7) recovered from a brief first-half rut and seven-point deficit to extinguish the dreams of the 15th-seeded Eagles (20-13).
John Schoof had 11 points for American.
Oregon 86, BYU 68: Elgin Cook scored a career-high 23 points for seventh-seeded Oregon in Milwaukee.
Joseph Young had 19 points for the Ducks (24-9), who had to stage a big comeback to beat the Cougars 100-96 in overtime in December. There was no comeback needed this time, with Oregon turning away every charge by BYU in the second half.
Tyler Haws scored 19 points for 10th-seeded BYU (23-12).
North Dakota State 80, Oklahoma 75, OT: Lawrence Alexander hit a 3-pointer with 11 seconds left to force overtime, and freshman Carlin Dupree scored four points in the final 75 seconds as No. 12 seed North Dakota State knocked off Oklahoma.
The Bison (26-6) picked up their first NCAA tournament win by rallying in the final minute, and then outlasting the No. 5 seed Sooners in overtime. Alexander finished with a career-high 28 points, but it’ll be his falling-down, fist-pumping celebration after the tying 3-pointer that will be replayed in Fargo for years.
Cameron Clark led Oklahoma (23-10) with 25 points.