For the season, Williams is averaging 7.4 yards per carry on 45 rushes. He has also caught two passes for 13 yards.
This is the second time the Cadillac has been honored by the SEC. He received the award after rushing for 167 yards last season in Auburn's victory at Georgia.
This season, Williams is 23rd nationally in rushing and 17th in scoring with his five touchdowns in three games.
His 65-yard run in the third quarter on Saturday put the Tigers up 24-6 and gave the Tigers control of the contest. Williams said that the offense stepped up its level of play after making some adjustments at halftime. "I had some big holes to run through," Williams said. "Big enough to drive a Cadillac through," he added with a smile.
Auburn running back coach Eddie Gran said, "It was nice to see him break that one in the second half. He was close a couple of times in the first half. They were blitzing us outside and as long as they were blitzing us outside, we would run it inside. Carnell hit the big run off of it. You give him the ball and give him the ball and he ius going to break one."
Williams, 2-1 overall and 1-0 in the SEC, and the Tigers return to action on Thursday with a 6:45 p.m. contest at Mississippi State. That game will be televised by ESPN.