Arizona head coach Sean Miller cuts the net down after claiming first place in the Pac-10 against Oregon at McKale Center in Tucson, Ariz., on Saturday, March 5, 2011 Greg Bryan/Arizona Daily Star

Before the Arizona Wildcats beat Oregon 90-82 this afternoon, the capacity crowd at McKale Center roared when coach Sean Miller said during the pregame video that the Wildcats had won "12 Pac-10 championships."

Then the Wildcats went out and made sure the 12th, and final one the conference will have, was all their own.

Arizona wasn't perfect defensively, and standout forward Derrick Williams was plagued with some self-inflicted fouls, yet the Wildcats had enough to send senior forward Jamelle Horne off on a good note.

"We've really done it as a team," Miller told the crowd immediately after the game.

Horne had 10 points and one rebound while starting his first conference game of the season, and the Wildcats had a balanced scoring attack with five players in double figures.

Kyle Fogg led the Wildcats in scoring with 20 points while Williams, in what was probably also his last game at McKale Center, had 14 points and five rebounds.

The win was Arizona's 19th straight at McKale Center, making the Wildcats the 19th and final team to go through Pac-10 play undefeated at home. Arizona also went undefeated at home during conference play six times previously but not since 1999.

Arizona is 25-6 overall and 14-4 entering the Pac-10 Tournament next week, where the Wildcats have earned the No. 1 seed and will face either Oregon, Stanford or Oregon State in the quarterfinals Thursday in Los Angeles.

Oregon finished the regular season at 14-16 overall and 7-11 in Pac-10 play.

It was the last Pac-10 championship and the last determined by a true double round-robin since the conference will add Utah and Colorado next season but play an unbalanced 18-game league schedule.

For UA coach Sean Miller, the championship represented the fourth time in the previous five years he has guided a team to an outright or share of a conference title, having done it previously with Xavier in the Atlantic 10 Conference.

Of Arizona's 12 Pac-10 titles dating back to 1986, only two of them have been shared.

There were two troubling trends for the Wildcats today: Arizona had trouble stopping the opposing interior players for the fifth straight game — Oregon big man Joevan Catron had 28 points to lead all scorers — while Williams was twice whistled for offensive fouls while trying to drive inside emphatically for potential dunks.

Catron did it both inside and out, hitting his fourth three-pointer with 5:41 left to cut Arizona's lead to 70-64. The game stayed close the rest of the way, though the Ducks never closed within a basket the rest of the way and Fogg sealed the win with a pair of free throws that gave UA an 88-77 lead with 35 seconds left.

Arizona started the second half on a 12-4 run, getting three-pointers from Horne and Williams.

Williams had just two points and three rebounds in the first half while playing only 10 minutes because of the three fouls he picked up.

In the first half, the Wildcats shot 57.1 percent from the field and took a 41-32 halftime lead. Fogg led a balanced scoring attack with nine points, on three early three-pointers, while all 10 members of the Wildcats who played scored at least two points.

Arizona led by up to 10 points in the first half but Oregon kept cutting it to single digits.

A three-pointer from Jordin Mayes brought UA's lead back to 10 points, 37-27 with three minutes left but Oregon's Teondre Williams hit a three to make it 37-30.

Oregon later made it 37-32 on two free throws from Malcolm Armstead.

Oregon cut it to 32-17 with 4:32 left in the first half on a free throw from Jamie Nared. Williams picked up a second foul with 11:15 to go, being called for an offensive foul as he wound up for a dunk and collided with Oregon's E.J. Singler.

Fogg singlehandedly put the Wildcats in front early, hitting three three pointers within first 2:18 of the game. UA led 13-6 with 14:39 to go and was up by 10 by the time Solomon Hill skirted down the baseline for a reverse layup with 7:48 to go.

Miller started Horne in place of Jesse Perry and Horne was introduced last of the UA starters, drawing loud applause from the crowd of 14,500.

Williams was wearing black tape around his injured pinkie and ring finger on his right hand, but had no other bandage.