Rayasi's fellow winger Wes Goosen, flanker Du'Plessis Kirifi, hooker Asafo Aumua, centre Ngani Laumape and fullback Jordie Barrett also nabbed tries as the home side ran out convincing bonus-point winners at Maclean Park.
The Perth-based Force raced out to a 6-0 lead on the back of two Domingo Miotti penalties but were outmuscled in the tackle area and made mistakes at crucial moments.
