The Sandgropers 13.9 (87) defeated the Country 6.10 (46) in the first match of the division one double-header, held on the final day of the carnival.
But Western Australia's chances of winning the title hinge on the outcome of the final match between Victoria Metropolitan and South Australia, which will be played on Sunday afternoon at the same venue. At this point, Vic Metro holds the edge.
For Vic Country, it ended a disappointing championship, as it failed to win a match, after going down to South Australia by 51 points and Vic Metro by 38 points in its previous matches.
Western Australia set up the win with seven goals to one in the first half and although Vic Country lifted its game after the long change, it was still outscored by the Sandgropers after half-time.
Matthew Seal was a terrific performer in Western Australia's win, booting four goals and finishing the match with 24 disposals. He also raked in nine grabs in a best-on-ground display.
Highly-rated Western Australian Mitchell Clark snagged three majors, while teammate Andrew Swallow continued his impressive carnival, claiming 22 touches.
Joel Selwood - the younger brother of AFL players Adam and Troy - was Vic Country's best player, claiming 24 touches. He again highlighted why he will be one of the most sought after players in next year's NAB AFL Draft. Tim Looby and Robert Eddy were others to stand out.
Western Australia had the edge in the first quarter, when it booted four goals to zip, claiming a 22-point lead at the break. Seal had an outstanding term, booting three goals.
Vic Country managed its only goal of the first half during the second term, via Selwood, as Western Australia ran away to a 39-point at the main break.
The Sandgropers extended the margin to 51 points mid-way through the third quarter to end any hope of a Vic Country comeback. And despite two in a row from Country late in the term, it still trailed by 37 points heading into the final stanza.
Vic Country kicked the opening two goals of the last quarter, to offer some fleeting comeback signs, but when Western Australia hit back with four of the remaining five majors, the result was never in doubt.
VICTORIA COUNTRY: 0.3 1.4 3.7 6.10 (46)
WESTERN AUSTRALIA: 4.1 7.7 9.8 13.9 (87)
GOALS - Vic Country: Simpkin 2, R.Eddy, Looby, Neagle, Selwood
Western Australia: Seal 4, Clark 3, Ballantyne, Collard, Conway, Kennedy, O'Brien, Swallow
BEST - Vic Country: Selwood, Looby, R.Eddy, Thomas, Pendlebury, Bowe
Western Australia: Seal, Swallow, Conway, Heise, Jetta, O'Keefe, Toovey, Taggart, Clark
UMPIRES - Brown, McDonald, Reeves
At Optus Oval
