The Rockets (5-1) set the tone for the game sacking Mulvane quarterback Ty Redington on the first play of the game for a 12-yard loss.
From there, Rose Hill kept the pressure up and was relentless with the ball. Decker using his legs to subdue Mulvane, scoring the first touchdown of the game and then tossing a 7-yard strike to Caleb Braddy to give the Rockets a 13-0 halftime lead.
"You're looking at a kid who played tailback all the way until freshman year of high school," Slade said. "He understands the run game very well and does a good job of it."
Rose Hill notched three more scores in the third quarter, showcasing their arsenal of weapons not named Decker as Johnny Pearson ripped of 39-yards for another touchdown. And then exploiting a Mulvane (4-2) mistake with a fumble recovery on the goal line to further hammer home the point.
"We have a lot of threats in the backfield: if you key on me, we have two running backs in the backfield that will hurt you," Derrick Decker said. "You are not going to shut everyone down and no one can, really."
The Rockets open district play next week with Augusta (0-6), followed by matchups with Circle (0-6) and El Dorado (0-6).
Mulvane travels to Wellington (3-3) in Week 7.