WEST Perth kicked four goals to nil in the opening quarter to set up an eventual 46-point win over Perth at HBF Arena on Saturday, 13.13 (91) 6.9 (45), to remain in touch for a top-two finish.
Max Duffy and Michael Lourey both kicked four goals each for West Perth, with Joel Leeson adding two in the final quarter against his former side.
Shane Nelson compiled another 40 possessions for West Perth, with Aaron Black finishing with 32 disposals, Blake Wilhelm 29, Aidan Lynch 28, Jay van Berlo 26 and Steven Browne 19.
Chris Keunen had a better showing in the ruck with 17 disposals and 19 hitouts, while Dean Munns did another tremendous tagging job, holding Perth midfielder Julian Jacobs to a careerlow six touches.
Spencer White kicked three goals for Perth and Sam Garstone two.