Conference play is really when these things start to take shape. There are head-to-head wins and common opponents to take into account and that led to some significant shuffling.
1. USC (4-0, 2-0 Pac-12): It has now been a full calendar year since the Trojans last lost a game. They weren’t particularly impressive (again) against Cal, but this is a team that was 1-3 at this point last year and ended up No. 3 in the final AP poll. They’ll be fine.
2. Washington (4-0, 1-0): The Huskies got a career-high 202 yards rushing from Myles Gaskin in an impressive win in Boulder. Consider it a coin flip between them and USC for the top spot.
3. Washington State (4-0, 1-0): It’s a bummer that the Cougars’ game against USC this week is on Friday, because had it been scheduled for Saturday, Ol’ Crimson surely would have been coming home.
4. Utah (4-0, 1-0): Undefeated is undefeated, but QB Tyler Huntley's injury and a lackluster win against Arizona don’t inspire much confidence.
5. California (3-1, 0-1): Even though they lost to USC, the Bears further proved their hot start wasn’t thanks to smoke and mirrors. Two interesting road tests await the next two games: Oregon and Washington.
6. Stanford (2-2, 1-1): Bryce Love has rushed for 787 yards on 73 carries through four games. In the past 10 years, only one FBS player has rushed for more in his team’s first four games. LSU’s Leonard Fournette had 864 yards in 2015 on 26 more carries.
7. Colorado (3-1, 0-1): The Buffs matched up well with Washington for large stretches of the game, but just about every big play went the Huskies’ way. QB Steven Montez is a real talent, but the interceptions were costly.
8. Arizona State (2-2, 1-0): Can the win against Oregon change the trajectory of the program? The losses to San Diego State and Texas Tech aren’t looking as bad now, either.
9. Oregon (3-1, 0-1): There was optimism aplenty after the 3-0 start, but none of those wins came against a good team. Three straight Pac-12 North games loom.
10. UCLA (2-2, 0-1): In both their losses, the Bruins gained at least 595 yards of offense. Dating back to 2004, only one team -- Texas Tech in 2015 -- has ever lost more than two games in a season in which it has gained that many yards.
11. Arizona (2-2, 0-1): The Wildcats are just good enough to hand someone a frustrating loss.
12. Oregon State (1-3, 0-1): Everyone should be more like Silas.