Martez Carter returned two kicks for touchdowns and had a 10-yard TD run in the fourth quarter to cement the win for Grambling State (2-2, 2-0 SWAC). Williams completed 20 of 33 passes for 429 yards and had two interceptions.
Chad Williams racked up 193 yards on seven catches and two touchdowns, including an 83-yard grab in the first quarter. Chester Rogers had 114 yards with three catches - two for touchdowns. Lovett Gibson also hauled in a touchdown pass.
Prairie View (2-2, 2-1) tied the game early in the first quarter at 7-7 when Nick Pitre snagged an 8-yard touchdown throw from Trey Green, who completed 29 of 55 passes for 414 yards, four TDs and an interception.
But the Tigers quickly retook control with 21 unanswered points.
AP College Football website: www.collegefootball.ap.org