BROOKINGS, S.D. -- Tyrel Kool returned the opening kickoff 100 yards for a touchdown and Zach Zenner ran for 171 yards and two scores, leading South Dakota State to a 31-10 victory over Western Illinois on Saturday.
South Dakota State (5-1, 3-0 Missouri Valley) gave up the tying TD in the first quarter when Martinez Davis returned an interception 28 yards for a TD.
Zenner got his first score, on a 46-yard run, just 10 seconds into the second quarter. His second score, from 60 yards out, came in the fourth quarter and gave South Dakota State a 24-10 lead.
Charles Chestnut had a strong effort for Western Illinois (3-3, 1-2) with 9 catches for 123 yards.
Ohio State remained No. 1 in the AP Top 25 and tied a poll record Sunday despite lagging support from voters. Meanwhile, No. 2 TCU and No. 3 Baylor edged forward and No. 4 Michigan State slipped.
Texas cornerback Kris Boyd has apologized for retweeting a Texas A&M fan during halftime of Texas' 50-7 loss to TCU on Saturday.
The Big 12 on Sunday acknowledged an officiating mistake that incorrectly awarded Oklahoma State a first down Saturday and said the officials involved would be disciplined.
Georgia coach Mark Richt says he's sticking with Greyson Lambert, who was just 10-for-24 for 86 yards in a loss to Alabama, as the Bulldogs starting quarterback.
Will Grier threw four touchdown passes to four receivers -- all in the first half -- and No. 25 Florida downed third-ranked Mississippi 38-10 on Saturday night.
Leonard Fournette highlighted his SEC-record third straight 200-yard game with a 75-yard touchdown run, and No. 9 LSU overcame Eastern Michigan 44-22 on Saturday night.