Williams, who rushed for 77 yards, scored on bursts up the middle for touchdowns of 18 and 28 yards. Tucker Gregg gained 115 yards for the Panthers, giving him 1,072 in his career. Georgia State (3-4, 2-1 Sun Belt) piled up 298 yards on the ground.
Brady McBride completed 27 of 47 passes for 255 yards for Texas State (2-5, 1-2). McBride's 8-yard touchdown run pulled the Bobcats to 14-13 in the second quarter.
Texas State could only manage a Seth Keller field goal — his third of the game — after halftime.
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