Oklahoma St. 24, Texas Tech 17 - The No. 17 Cowboys (8-2, 5-1 Big 12) relied on their defense to beat the visiting Red Raiders (6-4, 3-3), getting a 21-yard interception return for a TD by Patrick Lavine.
California 24, Arizona 16 - Playing without star running back Jahvid Best (concussion), the host Golden Bears (7-3, 4-3 Pac-10) knocked off the No. 18 Wildcats (6-3, 4-2) behind four field goals by Giorgio Tavecchio.
Penn St. 31, Indiana 20 - Linebacker Navorro Bowman had a momentum-turning 73-yard interception return for TD and Evan Royster scored twice as the No. 19 Nittany Lions (9-2, 5-2 Big Ten) survived a sloppy performance at home.