Here's a look at Saturday's games. All times are ET.
Washington State (4-5, 2-4) at Arizona (6-3, 3-3), 2 p.m., Pac-12 Network: Arizona leads the series 25-13 and has won five in a row, including a 24-7 victory in 2010. Washington State ranks last in the nation in rushing offense, but its 52.1 yards rushing per game is significantly better than its 29.1 yards per game in 2012, which also ranked last. Arizona ranks 11th in the Pac-12 in passing offense (187.6 ypg) and 11th in pass efficiency. Washington State is 10th in pass efficiency defense. Washington State is minus-six in turnover margin; Arizona is plus-five. The Cougars have turned the ball over a conference-worst 27 times, including throwing 20 interceptions, second-most in the nation. Arizona RB Ka'Deem Carey ranks second in the nation in rushing yards per game with 152.6 ypg. Boston College's Andre Williams has taken over the lead from Carey with 163.4 ypg.
Utah (4-5, 1-5) at No. 6 Oregon (8-1, 5-1), 4 p.m., Fox Sports 1: Oregon leads the series 18-8 and is 10-4 in Eugene. Utah, however, has won three of four against the Ducks since 1991 with wins in 1991, 1994 and 2003. Oregon won the last contest in 2009, 31-24 in Autzen Stadium, which snapped a 16-game Utah winning streak. Oregon is the fourth ranked team the Utes have faced this season, marking the first time a Utah team has played four opponents ranked in the Associated Press top 25 in a season. The Utes are 1-2 against ranked teams this season, handing No. 5 Stanford, which just beat the Ducks, its only loss, and losing to No. 12 UCLA and No. 23 Arizona State. Its losses to ranked teams have come by a total of eight points. The combined FBS record of Utah's first nine opponents is 45-17 (.726). Oregon leads the Pac-12 in both scoring offense (51.7 points per game) and scoring defense (17.9 ppg). Utah leads the nation in sacks per game (3.67). Utah is second in total sacks with 33 in nine games (Missouri has 34 sacks in 10 games). Utah's run defense yields 3.5 yards per rush, which is tied with Oregon for second in the conference. Oregon averages a Pac-12-best 6.7 yards per rush.
California (1-9, 0-7) at Colorado (3-6, 0-6), 5:30 p.m., Pac-12 Network: California leads the series 4-2, including three consecutive wins. Though the last game between the two took place in 2011, this is their first meeting as Pac-12 teams. The 2011 game, which Cal won 36-33 in overtime, was the second game of a home-and-home series signed before the Buffaloes were Big 12 members. In that game, Colorado WR Paul Richardson caught 11 passes for a school-record 284 yards to help Colorado rally from a 10-point deficit in the second half. Buffs QB Tyler Hansen finished with a team-record 474 yards passing. The Buffs outgained the Bears 582-370. This meeting likely will settle which team finishes in the Pac-12 basement, as it looks like both teams' best chance to win a conference game. These teams rank at the bottom of the Pac-12 in most major statistical categories. They are 11th and 12th in scoring offense, scoring defense, total defense, run defense and pass efficiency defense. Cal ranks last in the conference in sacks allowed (30). Colorado ranks last in sacks (11).
No. 4 Stanford (8-1, 6-1) at USC (7-3, 4-2), 8 p.m., ABC: In a series that dates to 1905, USC holds a 58-29-3 (USC's 2005 victory was vacated due to NCAA penalty; original record: 59-29-3), but Stanford has won the last four meetings, its longest winning streak in the series, and five of the past six. Last year, No. 21 Stanford upset No. 2 USC 21-14 behind 213 all-purpose yards and two touchdowns from TB Stepfan Taylor and a stifling defense that shut out the Trojans in the game's final 41 minutes in the Pac- 12 opener. In games in the Los Angeles area (including a 1918 game in Pasadena), USC leads 25-18-1 (not including a USC win in 2005 vacated due to NCAA penalty; original record: 26-18-1). The BCS crystal ball will be on display on the field, ESPN's College GameDay pregame show is here for the 10th time (but the first from the USC campus). A key matchup will be the Trojans' tough run defense, which ranks second in the Pac-12 (112.5 yards per game) against the Stanford running game, which averages 205 yards per game and produced 274 yards in the 26-20 victory over No. 3 Oregon last week.
Oregon State (6-3, 4-2) at No. 19 Arizona State (7-2, 5-1), 9:30 p.m., Pac-12 Network: Arizona State leads the series 26-12-1, but Oregon State won 36-26 last year and has won four of five. Sun Devils senior running back Marion Grice has not scored a point in the past two games and yet remains No. 1 nationally in scoring (12.0 per game). Grice is No. 8 nationally at 168.56 all-purpose yards per game. Oregon State ranks 121st in the country in rushing offense (69.4 yards per game) and No. 2 in passing offense (404.8 ypg). The Sun Devils rank No. 1 in the Pac-12 in total defense (332.7 ypg) and third in rushing defense (136.2 ypg). Arizona State has outscored opponents 105-59 in the fourth quarter this year. Arizona State is second in the nation in fourth-quarter scoring at 12.8 points per stanza (FBS games only). Indiana leads at 14.4. Oregon State WR Brandin Cooks leads the nation with 149.3 yards receiving per game. His 14 TD receptions ranks second.