With the Pacific-10 Conference slate nearly halfway over, the standings are finally starting to take shape. Last weekend’s action showed who is for real, who can compete for the conference crown and who have a long way to go.

No. 11 Arizona 69, No. 3 UCLA 73

Stellar performances from guards Arron Afflalo and Darren Collison helped hand the Wildcats their third consecutive conference loss. Arizona had not lost three straight Pac-10 games since the 1983-1984 season.

Afflalo dumped in 22 points and his defense limited Arizona’s Marcus Williams to just 11 points. Williams entered the game leading the conference in scoring, averaging 18.5 points per game.

Collison scored 14 points and dished seven assists as the Bruins won their 15th consecutive game at Pauley Pavilion dating back to last season.

The Wildcats were ice-cold from three-point territory, hitting just three of their 15 attempts from outside the arc. But a 22-of-25 shooting night from the free-throw line kept Arizona in the game late.

UCLA led by 12 points with just over two minutes to play, but Arizona went on a 9-0 run to pull within three points, at 68-65, with 25 seconds left. Michael Roll and Alfred Aboya each converted on a pair of free throws in the final seconds to seal the win for the Bruins.

The Wildcats (13-5, 4-4) fell to seventh in the conference standings with the loss. UCLA (17-1. 6-1), meanwhile, held their share of the top spot with the victory.

California 84, No. 9 Oregon 92

The Ducks got 22 points from senior guard Aaron Brooks to outslug the Bears in Eugene. Brooks scored 15 of his points in the second half as Oregon pulled away from Cal in the final eight minutes.

The Bears led the No. 9 Ducks 46-38 at halftime, but Oregon battled back to tie the game 2:25 into the second half at 48-all. The Ducks opened the second period on a 20-6 run and went on to score 54 points in the half.

Cal’s offense was led by Theo Robertson, who finished with a career-high 19 points. Ayinde Ubaka and Omar Wilkes each added 17 and freshman Ryan Anderson chipped in 14.

Oregon (18-1, 6-1) will wrap up the first half of the Pac-10 season on the road against Washington and Washington State, looking to hang on to the top spot in the conference standings.

Cal (12-7, 4-3) will return to Berkeley to host UCLA and USC.

Washington 47, Washington State 75

Playing in front of a capacity crowd at Friel Court for the first time since 1983, Washington State did not disappoint, handing the Huskies the biggest loss in the history of the rivalry.

The Cougars held Washington scoreless for nearly nine minutes in the first half to build a large early lead that they did not surrender. The Cougars went on a 15-0 run in that span.

Guard Derrick Low scored 20 points and Kyle Weaver added 17 points and eight rebounds for the Cougars. As a team, Washington State shot 53 percent from the field.

The Huskies were without freshman center Spencer Hawes, who sat out the game after injuring his ankle in practice last Friday. Fellow freshman Quincy Pondexter, also hampered by an ankle injury, did play and scored 16 points on 4-of-10 shooting to lead Washington.

The win kept Washington State (16-3, 5-2) in the hunt for its first-ever Pac-10 Conference title. The Cougars sit one game out of first place with a matchup against conference-leader Oregon looming this weekend.

Washington (11-7, 1-6) has still not won a game on the road this season. The Huskies are 0-6 away from Seattle.

Arizona State 49, USC 58

USC forward Nick Young capped off a tremendous week on the court, following a 30-point performance in a 80-73 win over Arizona last Thursday with 18 against the Sun Devils to help the Trojans climb up the conference standings.

Arizona State hung tough with the up-and-coming USC squad through the first seven minutes, but a run in the closing minutes of the first half gave the Trojans a 12-point lead at the break.

Freshman Taj Gibson was the Trojans’ only other double-digit scorer, dumping in 11 points and pulling down eight rebounds.

Arizona State sophomore Jeff Pendergraph led the Arizona State offense with 13 points. He also snagged a game-high nine rebounds.

USC (15-5, 5-2) cracked the top 25 for the first time this season in the most recent polls. They visit Maples this Thursday to take on the Cardinal.

Arizona State (6-13, 0-8) lost their eighth straight game under first-year coach Herb Sendek. The Sun Devils face in-state rival Arizona this weekend in Tucson.