Heritage Hall recovered a fumble on Clinton's next possession, but McGinnis was stopped on downs on fourth-and-4 at the Clinton 33.
Clinton then put the game away with a seven-play, 67-yard touchdown drive, capped off by Devon Mitchell's 1-yard touchdown run. Simpkins, who finished the game with 180 yards rushing on 14 carries, ripped off runs of 12 and 42 yards on the game-winning drive.
It was the first time the Red Tornadoes have defeated Heritage Hall in three tries. Heritage Hall, ranked No. 7 in Class 3A, fell to 1-1, while Clinton improved to 1-1.