The Associated Press | January 13, 2014 Top 25 Roundup:Iowa knocks off Ohio St. Share Marble's 22 lift No. 20 Iowa past No. 3 OSU, 84-74COLUMBUS, Ohio -- Roy Devin Marble scored 22 points, Aaron White added 19 and No. 20 Iowa ended the game on a 22-9 run to hand No. 3 Ohio State its second loss of the week 84-74 on Sunday.Melsahn Besabe had 11 points and 10 rebounds, Mike Gesell added 11 points and Jarrod Uthoff had 10 off the bench for the Hawkeyes (14-3, 3-1 Big Ten), who ended a string of eight consecutive losses to the Buckeyes.LaQuinton Ross scored 22 points, Amir Williams had 11 and Lenzelle Smith Jr. 10 for Ohio State (15-2, 2-2), which had opened with 15 consecutive wins. The Buckeyes fell 72-68 in overtime at No. 5 Michigan State on Tuesday night.It was Iowa's first win against a top-five team since an 83-65 victory at No. 2 Missouri on Dec. 15, 2001.No. 1 Arizona 73, USC 53LOS ANGELES -- Brandon Ashley and T.J. McConnell each scored a season-high 19 points and No. 1 Arizona beat USC 73-53 Sunday night to improve to 17-0 for the best start in school history.Nick Johnson chipped in 15 points and Aaron Gordon had 12 for the Wildcats, the second consecutive game they've had four players reach double figures in scoring.The 1931-32 Wildcats held the previous school record for best start at 16-0.Byron Wesley scored 18 points and reserve Strahinja Gavrilovic added a career-high 10 points to lead the Trojans, who have lost three in a row and four of their last six.Arizona led just 48-43 with 8:30 to play, but outscored USC 25-10 the rest of the way to turn the close game into a rout.No. 12 Louisville survives SMU 71-63LOUISVILLE, Ky. -- Luke Hancock's career-high 23 points, including two free throws with 46 seconds remaining, helped No. 12 Louisville hold off SMU for a 71-63 victory Sunday in a meeting of Hall of Fame coaches.Hancock's second consecutive 20-point game helped Rick Pitino's Cardinals (14-3, 3-1 American Athletic Conference) get the final word in his first collegiate matchup against Larry Brown and his Mustangs (11-4, 1-2).Making his first start despite dealing with a left Achilles issue, Hancock made 8 of 15 from the field - 4 of 9 from 3-point range - to help keep Louisville ahead in a tense game that Montrezl Harrell finally settled with a dunk and a block after Hancock's free throws.Russ Smith scored 23 points and Harrell added 12 points and 13 rebounds as Louisville bounced back from Thursday's loss to No. 24 Memphis with 47 percent shooting, despite being outrebounded 48-35.No. 13 San Diego State beats Air Force 79-72AIR FORCE ACADEMY, Colo. -- JJ O'Brien had 18 points and 11 rebounds as No. 13 San Diego State extended its winning streak to 13 games with a 79-72 victory against Air Force on Sunday.It is the second-longest winning streak in school history for the Aztecs (14-1, 3-0 Mountain West) and it continues their second-best start ever behind 20-0 in 2010-11.The Falcons (8-7, 2-2) did not go down easily against the taller, deeper and more physical Aztecs. Air Force led for much of the first half before trailing 31-27 at the break.San Diego State's rebounding advantage and 3-point shooting proved the difference. The Aztecs held a 39-30 rebounding edge including 17-6 on the offensive end. The Aztecs were 7 of 14 from beyond the arc while the Falcons were 7 of 20.Wilcox leads Washington past No. 15 Colorado 71-54SEATTLE -- C.J. Wilcox set career highs with seven 3-pointers and 31 points, including 21 in the second half, and Washington ran away from No. 15 Colorado for a 71-54 victory Sunday.It was Washington's first win over a ranked team since Isaiah Thomas' jumper beat then-No. 16 Arizona in the 2011 Pac-10 Conference tournament championship game. Washington (11-6, 3-1 Pac-12) had lost 12 straight against ranked teams.Colorado (14-3, 3-1) never recovered after leading scorer Spencer Dinwiddie crumbled to the court late in the first half after his left knee buckled while dribbling on a fast break. Dinwiddie had to be helped to the locker room by teammates and did not return.The Huskies outscored the Buffaloes 49-29 after Dinwiddie's injury.Stanford beats No. 17 Oregon 82-80EUGENE, Ore. -- Anthony Brown scored a career-high 24 points and Stanford held on to send No. 17 Oregon to its third consecutive loss 82-80 on Sunday.Chasson Randle had 23 points for the Cardinal (10-5, 1-2 Pac-12), who beat their second ranked team this season, something they hadn't accomplished since 2009.Mike Moser scored 24 points to lead the Ducks (13-3, 1-3), who had two chances to tie the game in the final 8 seconds but Johnathan Loyd missed an open jumper and Dominic Artis had a last-ditch layup roll off the rim as time expired.Oregon opened the season 13-0 but hasn't won since beating Utah in overtime on Jan. 2. The Ducks have since lost to No. 15 Colorado, California and the Cardinal. They have allowed an average of 92.6 points in those games.Northwestern 49, No. 23 Illinois 43EVANSTON, Ill. -- Tre Demps scored 11 points and made three late 3-pointers to lead Northwestern to the upset of in-state rival Illinois.Drew Crawford added 14 points and JerShon Cobb had 11 for Northwestern (8-9, 1-3 Big Ten), which gave coach Chris Collins his first conference victory.Tracy Abrams had 13 and Rayvonte Rice had eight for the Fighting Illini (13-4, 2-2), who have lost two games in a row after four consecutive wins.