The Bulls retained second spot on the ladder after crushing Busselton at the Harvey Recreation Ground in Round Nine.
Conceding just two points in the first half, Harvey secured an 18-point lead at the main break.
The home side added another 14 points in the second half, before going on to claim a 4.10 (34) to 1.3 (9) win.
Bulls Dana East and Fleur Parker notched up two goals each.
Collie's Women's side showcased their skills and entertained the crowd at VC Mitchell Park.
In Sunday's scratch match against Donnybrook, the Eagles all moved swiftly around the ground.
The side piled on several majors and conceded just one point.
South Bunbury remains on top following its outstanding performance against the Eaton Boomers at Hands Oval.
Booting five goals in the first half and six in the second, the Tigers scored an impressive 11.9 (75) to 0.2 (2) victory.
Harvey-Brunswick-Leschenault ran circles around seventh-placed Carey Park on Saturday afternoon.
Logan Triplett booted four goals in the Lions' 9.4 (58) to 1.2 (8) win.
Read more:
