5 wins and 5 losses. In two of the losses, BYU didn't score a touchdown. In three of the losses, he threw an interception on BYU's last possession (all three had potential to be a game-winning drive).

5 Wins
UMass 2x
Hawaii
New Mexico State
Western Michigan

5 Losses
Northern Illinois (interception thrown on BYU's last drive with 2 minutes left in game)
Boise State (drove team to goal line, but couldn't get them in end zone as time expired)
Toledo (interception thrown on BYU's last drive that Toledo returns to the 1 yard line; Toledo scores and wins the game)
San Diego State (three turnovers; team scores 3 points)
Hawaii (has a good first half; bad decision making in 2nd half with goal line fumble and interception thrown on BYU's last drive; three turnovers for the game.)