Easts Tigers were able to dig deep to hold out the Mackay Cutters and emerge 26-24 victors.
The Tigers fell behind 10-nil early but manage to work their way back into the game with a string of tries either side of half-time.
Young Tonumaipea performed strongly while Storm teammate Scott Drinkwater stole the show.
The 20-year-old lead the way from fullback and scored was proved to be the decisive try in the 72nd minute.
“He had his hand in everything,” Easts coach Scott Sipple said.
“They tried to rough him up a bit but he handled it with class and scored a try.
“He has been outstanding the last two weeks."
EASTS TIGERS 26 (Conor Carey, Jarrod McInally, Jarred Tuite, Jack Svendsen, Scott Drinkwater tries; Brayden Torpy 3 goals) def MACKAY CUTTERS24 (Kurt Wilshire, Mitchell Dunn, Kyle Laybutt, Nathan Saumalu, Johnny Faletagoa’i tries; Kyle Laybutt 2 goals) at Suzuki Stadium, Langlands Park.