Bunbury secured the 2020 South West Football League's minor premiership title with an 88-point victory over Donnybrook at Payne Park.
The round nine clash saw the Bulldogs dominate possession and kick three unanswered goals in the opening quarter.
The side continued its assault in the second term, before going on to claim a 48-point lead at the main break.
Booting another 10 goals to two in the second half, the Bulldogs cruised to a resounding 17.13 (115) to 2.5 (17) win at home.
Superstar Mitchell Howlett bagged six goals in Busselton's 78-point thrashing over the Harvey Bulls on Sunday afternoon.
Playing at the Harvey Recreation Ground, the Magpies ran out to a comfortable 33-point lead in the first quarter.
After scoring four goals to two in the second term, the visitors widened the gap to a stunning 74 points in the third.
At the end of a tough fourth quarter, Busselton celebrated a well-deserved 16.17 (113) to 5.5 (35) away win.
Jaxon East booted three goals for the Magpies, while Harvey's Sebastian Omodei and Jacob Ferrier kicked two goals each.
Harvey-Brunswick-Leschenault finished second on the ladder after claiming a 67-point win over Augusta-Margaret River.
The Lions held a 13-point lead at quarter time, before scoring another three goals to one in the second term.
As the Hawks ran out of steam, the reigning premiers slotted a superb five goals to one in the third.
With five majors, Tom Kelly guided HBL to a sublime 15.7 (97) to 4.6 (30) victory in front of a lively home crowd.
The Collie Eagles delivered a note-perfect performance against the Eaton Boomers at the Collie Recreation Ground.
The Boomers notched up a solid six-point lead at the end of a high-scoring first quarter.
Refusing to give up, the Eagles rallied to kick two spectacular goals in the second term and another three in the third.
The home side defeated the visitors by 48 points, 15.17 (107) to 9.5 (59), after posting six goals to two in the fourth quarter.
Hands Oval played host to a gruelling clash between seventh-placed Carey Park and ninth-placed South Bunbury on Saturday afternoon.
After scoring four goals to one in the opening term, Carey Park added another three to its total in the second.
The visitors held a 16-point lead at the main break, before widening the gap to 20 in the third quarter.
Booting four goals, star forward Riese Wilkey steered the Panthers to a hard-fought 10.13 (73) to 7.13 (55) win.
South Bunbury retained the Women's minor premiership title with a devastating 19.9 (123) to 0.1 (1) victory over Carey Park.
Harvey came back to narrowly defeat Busselton, 1.8 (14) to 1.7 (13), before Bunbury secured a 6.3 (39) to 4.8 (32) win over Donnybrook.
Week one of the finals series will see HBL go up against Busselton and the Eagles contend with the Boomers.