Colby Goodwyn added three rushing touchdowns, and Marquel Thomas hauled in seven catches for 137 yards and two scores. This was Old Dominion's first win in school history against an FBS opponent.
The Monarchs (7-3) broke a 31-31 half-time tie when Heinicke scored on a 1-yard keeper, capping off a 9-play, 75-yard drive to open the second half. After forcing an Idaho (1-9) punt, Old Dominion went on a 10-play, 80-yard touchdown drive, pushing the lead to 45-31.
The Vandals responded as Richard Montgomery's 12-yard touchdown run cut the lead to 7, but Heinicke found Thomas for a 39-yard touchdown on the next drive.
Taylor Davis threw for 308 yards and two touchdowns to lead Idaho. He also threw two interceptions.