In the Pac-12 conference, you are only as good as your previous game, and nothing is guaranteed. Oregon and Colorado, two teams picked to finish in the upper-third of the league, are a combined 6-9 in conference games.
Colorado has lost four of its last five games and Oregon finally snapped a five-game losing streak on Sunday. California, which won its first five conference games, was upset Wednesday night by a USC team that started conference play 0-5.
Just when we were ready to count Arizona State out of NCAA tournament discussions, Herb Sendek's club goes 2-0 against the Rocky Mountain schools, including a dominant 21-point victory over Colorado.
See how this past weekend's results have affected House of Sparky's latest Pac-12 basketball power rankings.
1. Arizona Wildcats (20-0, 7-0) Last Week: 1
The Wildcats continue to dominate the conference, sweeping the Rocky Mountain schools at home this past week. Arizona was tested against Utah on Sunday night, winning by just nine points, its second closest margin of victory in conference play. The Wildcats continue to have great depth, as Arizona has seven players that average over 7.0 PPG.
2. UCLA Bruins (16-4, 5-2) Last Week: 3
UCLA showed this past weekend with a sweep of the Bay Area schools that the Bruins are the clear No. 2 team in the conference. The Bruins beat Stanford by 17 points on Thursday night and followed it up with a 12-point victory over California.
3. Washington Huskies (13-8, 5-3) Last Week: 8
The Huskies make the biggest jump in this week's power rankings, thanks in part to a sweep at home over the Oregon schools. Lorenzo Romar's club continues to be a pleasant surprise in conference play, rising to No. 69 in the latest RPI ranks.
4. California Golden Bears (14-6, 5-2) Last Week: 2
Cal was this past week's biggest disappointment. The Bears started the week off losing to lowly USC on the road and followed it up by losing by 12 to UCLA. The road does not get any easier this weekend, as the Golden Bears host the Arizona schools.
5. Arizona State Sun Devils (15-5, 4-3) Last Week: 10
The Sun Devils finally put together two quality wins in conference. Arizona State held off a feisty Utah team on Thursday night and blew out Colorado on Saturday. The Sun Devils now have some momentum heading into a crucial road trip to the Bay Area.
6. Stanford Cardinal (13-6, 4-3) Last Week: 5
Stanford struggled against both UCLA and USC. The Cardinal lost by 17 against UCLA and it took overtime for the Cardinal to beat USC. The road does not get any easier with the Arizona schools coming to visit.
7. Colorado Buffaloes (15-6, 4-4) Last Week: 4
The Buffaloes continue to struggle with life without Spencer Dinwiddie. Colorado has lost four of its last five games, with all the losses coming by double digits.
8. Utah Utes (14-6, 3-5) Last Week: 6
Utah continues to give upper-tier Pac-12 teams problems, as the Utes lost to Arizona State by four points and No. 1 Arizona by just nine points. The Utes still have not lost a Pac-12 game by more than nine points.
9. Oregon State Beavers (11-8, 3-4) Last Week: 10
The Beavers continue to improve in Pac-12 play, as Oregon State went 1-1 against the Washington schools this past weekend. The Beavers lost to Washington by just six points and their last two losses have come by a combined 11 points.
10. Oregon Ducks (14-5, 2-5) Last Week: 7
The Ducks snapped a five-game losing streak with a dominating 71-44 victory over Washington State. In their previous five Pac-12 losses, the Ducks gave up an average of 87.6 points per game. We will find out a lot more about Oregon after the Ducks host UCLA and USC this weekend.
11. USC Trojans (10-10, 1-6) Last Week: 12
For the first time in our power rankings, USC is not No. 12. The Trojans got their first conference victory when they topped Cal at home and Andy Enfield's club took Stanford to overtime in the Galen Center on Sunday night.
12. Washington State Cougars (8-12, 1-7) Last Week: 11
With the exception of a three-point victory over Utah, the Cougars have not looked competitive in conference. Washington State has lost four conference games in a row by an average of 22.8 PPG.