STANFORD, Calif. (AP) - Nick Johnson kept Arizona's perfect season going for another game, hitting a go-ahead 3-pointer with 51 seconds left and two free throws with 5.8 seconds to go as the top-ranked Wildcats survived for a 60-57 victory over Stanford on Wednesday night for their school-record 21st straight win.
After Johnson hit a jumper in the middle of the key with 2:36 remaining to make it 55-53, Dwight Powell answered on a baseline drive with 1:21 to go before Johnson delivered once more.
Johnson finished with 16 points, five rebounds and four assists and T.J. McConnell added 11 points, eight rebounds and four assists for Arizona (21-0, 8-0 Pac-12), off to the program's best start in conference play in more than a decade.
Arizona is one of three unbeaten teams left in Division I, joining No. 2 Syracuse, which also won Wednesday night. Fourth-ranked Wichita State hasn't lost either.
Powell and Josh Huestis each scored 13 points for Stanford (13-7, 4-4).
No. 2 SYRACUSE 67, WAKE FOREST 57
WINSTON-SALEM, N.C. (AP) - Freshman Tyler Ennis scored 16 of his 18 points in the second half and Syracuse matched the best start in program history.
C.J. Fair added 16 points for the Orange (20-0, 7-0 Atlantic Coast Conference) while Trevor Cooney scored all eight of his in the final 1:45.
The Orange pulled away late while sidestepping a possible trap with a visit from No. 17 Duke coming up this weekend, and joined the 2011-12 group as the only Orange teams to win their first 20 games.
Travis McKie and Devin Thomas scored 12 points each for the Demon Deacons (14-7, 4-4).
Cooney buried a fall-away jumper, followed that with two free throws to give Syracuse its first double-figure lead and streaked down court for an open-court dunk to put the Orange up 62-50 with 1:19 left.
Wake Forest had won 13 straight at Joel Coliseum and had won three straight home games against top-five teams - a run that included a rout of then-No. 2 Miami last season.
No. 6 KANSAS 92, No. 16 IOWA ST. 81
LAWRENCE, Kan. (AP) - Andrew Wiggins scored a career-high 29 points, including six straight late in the game, to lead Kansas to its seventh straight win.
Wiggins had 27 points in Saturday's win at TCU, and matched that with an emphatic dunk that gave Kansas an 81-72 lead with just under 3 minutes remaining in the game.
The Jayhawks (16-4, 7-0 Big 12) put away the Cyclones (15-4, 3-4) from there, something they failed to do after building a 16-point first-half lead and a 13-point second-half cushion.
Perry Ellis added 20 points for Kansas, which has won five straight over the Cyclones. Joel Embiid added 14 points and 11 rebounds, while Naadir Tharpe had 12 points and 12 assists.
Georges Niang led the Cyclones with 24 points. DeAndre Kane added 22 points and Melvin Ejim, battling foul trouble much of the game, finished with 18 points and eight rebounds.
Iowa State started the season with 14 straight wins, but has dropped four of its last five.
NORTHWESTERN 65, No. 14 WISCONSIN 56
MADISON, Wis. (AP) - Drew Crawford scored a season-high 30 points and JerShon Cobb added all 10 of his in the second half for Northwestern.
It was Northwestern's first win over the Badgers in Madison since 1996.
Crawford hit a 3 to give Northwestern (11-11, 4-5 Big Ten) a 13-point lead.
Wisconsin (17-4, 4-4) turned up the pressure late to get within six with 41 seconds left. But Traevon Jackson lost the ball on a drive with 23 seconds left to seal the Badgers' fate.
Ben Brust's 21 points led Wisconsin, which lost for the fourth time in five games.
Northwestern first-year coach Chris Collins earned his first big win on the road, and the Wildcats got their first victory over Wisconsin overall since 2009. It was a sharp contrast to teams' first meeting this year, a 76-49 Badgers blowout in Evanston.
No. 19 SAINT LOUIS 77, RICHMOND 57.
ST. LOUIS (AP) - Jordair Jett had 21 points and a career-best 10 rebounds for Saint Louis which led by 24 points in the first half.
The Billikens' 13th straight victory was one of their most lopsided. Richmond, coming off a win over then-No. 12 Massachusetts last week, entered with a four-game winning streak.
Dwayne Evans added 15 points and 10 rebounds for Saint Louis (19-2, 6-0 Atlantic 10). The start is second-best in school history behind the 19-1 beginning in 1993-94.
Kendall Anthony had 14 points for Richmond (14-7, 4-2), which shot 23 percent in the first half and finished with a season low in points.
ST. BONAVENTURE 78, No. 21 MASSACHUSETTS 65
OLEAN, N.Y. (AP) - Youssou Ndoye scored 11 of his 12 points in the second half for St. Bonaventure.
Matthew Wright, who had 11 points, put the finishing touches on the win with a 3-pointer with 55 seconds remaining. The Bonnies (13-8, 3-4 Atlantic 10) ended a 24-game losing streak against ranked opponents, which dates to a 57-56 home win over No. 20 Temple on Jan. 15, 2000.
Trey Davis scored 18 points for the Minutemen (17-3, 4-2), who lost for the second time in three games.
Star guard Chaz Williams was a non-factor. He finished with 11 points and fouled out with 1:39 remaining.
Charlon Kloof led the Bonnies with 14 points, but it was their defense that keyed the win against an opponent that was averaging an A-10-leading 78.5 points a game. St. Bonaventure forced 17 turnovers.
No. 22 MEMPHIS 69, UCF 59
ORLANDO, Fla. (AP) - Joe Jackson scored 17 points and Chris Crawford and Michael Dixon added 12 each for Memphis.
The victory extends the Tigers' winning streak to four games. Memphis (16-4, 6-2 American) also extended its conference road winning streak to 16 games.
UCF (9-9, 1-6) was within a basket for most of the second half, but was outscored 13-5 to end the game.
Isaiah Sykes led UCF with 24 points.
The loss drops the Knights to 1-15 all-time against the Tigers.
PENN ST. 71, No. 24 OHIO ST. 70, OT
COLUMBUS, Ohio (AP) - D.J. Newbill hit a pull-up jumper over Aaron Craft with 2 seconds left in overtime for Penn State.
Newbill, who led the Nittany Lions (11-10, 2-6 Big Ten) with 25 points, hit a 3 that forced overtime. Brandon Taylor added 19 points and Graham Woodward had 11 as Penn State ended Ohio State's string of victories in the series at 18.
LaQuinton Ross scored 16 points, Lenzelle Smith Jr. had 15 and Amir Williams added 12 for Ohio State (16-5, 3-5), which has lost five of six after a 15-0 start that saw it rise to No. 3 in the polls.
Buckeyes coach Thad Matta was 17-0 against Penn State since taking over as head coach in 2004-05.
Penn State improved to 2-11 at Value City Arena and is 3-4 on the road this season, winning for the first time in Big Ten play after losing their first three.