Waynesville stayed within striking distance for most of the first half, answering two Pioneer scores with a 16-yard touchdown pass from Luke Creditt to Ryan Potter to make it a 14-7 game.
But, two late turnovers in the second quarter led to 10 points by Alder in the final minute of the half to make it a 24-7 game.
“That was a big momentum shift right there,” Waynesville coach Brandon Philpot said. “We had some things not go our way and we didn’t make enough plays to make things go our way.
“But, yeah, stretching that lead to 17 points before the half let them relax a little bit and put some more pressure on us.”
The Pioneers scored on the opening drive of the third quarter — on a 30-yard run by DeHart — to make it 31-7.
Creditt completed 15-of-32 passes for 269 and three touchdowns but also threw three interceptions. Chase Gianattasio was Creditt’s top target, catching nine balls for 169 yards and a score.