Idaho beats Southern Utah 31-12

MOSCOW, Idaho -- Mason Petrino passed for 161 yards and threw all three of his touchdown passes to Cutrell Haywood as Idaho won its homecoming game 31-12 over Southern Utah on Saturday. The Vandals (3-4, 2/3 Big Sky Conference) led 24-0 on halftime and scored on their opening drive of the third quarter to cap their scoring. The Thunderbirds (1-6, 1-3) had a pair of touchdowns early in the fourth quarter and failed to convert both two-point attempts. Tyrese Walker ran 12 times for 107 yards and Isaiah Saunders had 25 carries for 92 yards and scored on a 1-yard dive that made it 17-0 with 9:19 left in the second quarter. Haywood had seven catches for 71 yards. Austin Ewing ran 19 times for 201 yards and two touchdowns, and Jay Green Jr . ran 19 times for 158 yards for the Thunderbirds. Southern Utah had 468 total yards, including 402 rushing.