Despite 27 points from Kevin Foster and 23 from Evan Roquemore, Santa Clara fell from the unbeaten ranks, losing 80-78 in overtime to visiting Utah State on Wednesday.
"I have to give Utah State credit. They stole one from us," Broncos coach Kerry Keating said. "At the end of regulation we played 15 seconds of great defense and then let them hit that three with two seconds left to tie it up."
Preston Medlin (11 points) hit that 3-pointer for the Aggies (4-1) to send it into OT at 70-70.
In the extra period, Roquemore made a 3-pointer with 9.1 seconds left to cut the deficit to one point. The Broncos (5-1) were forced to foul, and Danny Berger made one of two free throws. Roquemore's last-second 3-point attempt skirted off the rim.
"When you miss 10 free throws at home, bad things are bound to happen," Keating said.
Stanford 68, Seattle 57: Andy Brown scored a career-high 17 points to lead the Cardinal (5-3) over the visiting Redhawks (2-2). Brown was 6 of 9 from the field and also had six rebounds. Seattle had led 36-29 just over two minutes into the second half.
Duke 73, Ohio State 68: Mason Plumlee had 21 points and 17 rebounds, and the No. 2 Blue Devils (7-0) rallied late and held on to beat the No. 4
Arizona 93, Northern Arizona 50: Mark Lyons had 18 points, and the No. 9 Wildcats (4-0) routed the visiting Lumberjacks (2-4). Freshman Brandon Ashley (Bishop O'Dowd High-Oakland) had 11 rebounds for Arizona.
Miami 67, Michigan State 59: Trey McKinney Jones scored 18 points, and the visiting Hurricanes (4-1) held the No. 13 Spartans (5-2) without a field goal for a pivotal 5½-minute stretch in the second half in the ACC-Big Ten Challenge.
Arizona State 67, Arkansas-Pine Bluff 54: Carrick Felix had 21 points on 8-of-11 shooting, and the host Sun Devils (5-1) beat the Golden Lions (1-5).
SMU 62, Utah 55: Jalen Jones had 20 points and 16 rebounds, and the host Mustangs (7-1) beat the Utes (4-2) for their best start in six seasons under new coach Larry Brown.
UCLA 82, Cal State Northridge 56: Norman Powell had 17 points, and the Bruins (5-2) bounced back from a loss to Cal Poly to rout the visiting Matadors (6-2).
Sacramento State 68, USF 60: Kylie Kuhns had 21 points, leading the host Hornets (3-2) over the Dons (3-2). Mel Khlok had 13 points for USF.