The Knights led 7-6 at halftime after stopping Cal-Mum at the two yard line on the final snap of the first half. However, Kurtis Haut ripped a long run down to the 1 and punched it in on the next snap to put the Red Raiders ahead 12-7.
A botched punt snap that was kicked out of the end zone by Cal-Mum gave LeRoy a safety and closed the margin to 12-9.
Dylan Johnson kicked a 20-yard field goal with just under four minutes left in the game to even the score at 12. The Oatkan Knights got it back and quickly moved down the field before Kelso ran it in off tackle. Cal-Mum never got their final possession past midfield.
Marcus Mistersaro ran for 89 yards, including runs of 28 and 31 yards on the final drive, for the Oatkan Knights.
Haut led the Raiders with 165 yards rushing and two touchdowns.
LeRoy finished the season at 6-1, the first winning season since 2008 for the Knights. Cal-Mum went 4-3.