Quick look at today's Pac-12 games

Here's what's happening in the Pac-12 today.

No. 20 Stanford (4-2, 2-1) at California (3-4, 2-2) 3 p.m. FOX: This will be the 115th Big Game between California and Stanford (tied for the ninth most- played rivalry in FBS history). It will also be the earliest date of the Big Game since the first meeting, which was played in March 1892. Stanford leads the series 52-44-10 and has won two in a row, including a 31-28 win last season. The game matches the No. 2 rushing defense of Stanford (89.5 yards per game) against the No. 3 rushing offense of Cal (195.0). Stanford has struggled on the road this season, most notably the offense and quarterback Josh Nunes. In two road games, Stanford has failed to score an offensive touchdown, and Nunes is a combined 30-of-62 (48 percent) for 295 yards with no touchdowns and three interceptions.

Colorado (1-5, 1-2) at No. 10 USC (5-1, 3-1) 6 p.m. Pac-12 Network: USC leads the series 6-0, including a 42-17 win last season. Colorado is last in the Pac-12 in scoring offense and scoring defense. The Buffaloes also should offer a chance for USC's struggling passing game to get on track. The Buffs have been a mess defensively. They are allowing 41.3 points per game (117th in FBS) and have a minus-20.5 average point differential (also 117th in FBS). They have allowed at least 30 points in five consecutive games, tied with Central Michigan and UNLV for the longest such active streak in FBS. USC quarterback Matt Barkley can make conference history against Colorado. He needs three more passing touchdowns to tie the Pac-12 career record with fellow USC quarterback Matt Leinart. USC receiver Robert Woods also can make history in the game. He has 212 career receptions, just four shy of Dwayne Jarrett’s school record for catches in a career.

Washington (3-3, 1-2) at Arizona (3-3, 0-3) 10 p.m. Pac-12 Network: Washington leads the series 18-9-1, including a 42-31 win last season. The Huskies have lost two in a row, the Wildcats three in a row. All of those losses came to ranked teams. In last season's UW win, Chris Polk scored five TDs, rushed for 144 yards and caught four passes for 100 yards. In 2010 in Tucson, then-backup quarterback Matt Scott led the Wildcats to a 44-14 win, completing 18-of-22 passes for 233 yards and two TDs.

Utah (2-4, 0-3) at No. 8 Oregon State (5-0, 3-0) 10:30 p.m. ESPN2: While Oregon State leads the series 9-6-1, the Utes have won four of five, including a 27-8 win last season. That was the Utes' first Pac-12 victory in five tries. The teams split their past two decisions in Corvallis with Utah getting its only win there in 1991 and OSU winning in 2007. The Beavers are 5-0 for the first time since 1939, when they went on to lose their sixth game and finish 9-1-1. Oregon State hasn’t started 6-0 since 1907 (in a six-game schedule), and hasn’t been undefeated through six games since 1933 (started 4-0-2). The Utes are last in the conference in total offense and 11th in rushing offense. Oregon State is first in the conference and fourth in the nation in rushing defense. The Beavers’ 16 touchdown drives have an average length of 75 yards, the longest in FBS (13 of their 16 touchdown drives have been at least 75 yards).