No. 2 Alabama took five drives and nearly 24 minutes to score a point against LSU, and white-knuckled to a six-point win.
No. 3 Michigan State gave up 536 passing yards to a pedestrian Purdue team and suffered its first loss of the season.
No. 4 Oregon slogged through a chilly night in Seattle against unranked Washington, clinching the game on a safety in the last two minutes.
No. 5 Ohio State needed a few late-game gambles by Ryan Day to clinch a win at Nebraska, finally clinching with a field goal with 1:29 remaining.