WA is the only undefeated team heading into the final game of the Championships after defeating Vic Metro by 30 points and South Australia by 19 points.
Vic Country is coming off a 53-point win over South Australia and a 1-point loss to Vic Metro.
A win or a draw for WA on Friday will guarantee they take home the Division 1 title.
WA North West is also performing well in Division 3 of the Championships, claiming a huge 87-point win in their first game over South Pacific.
Picture: Jarrod Pickett in action against South Australia.
Western Australia 2.2 6.4 8.8 11.10 (76)
Vic Metro 2.1 3.2 6.2 7.4 (46)
Goals - WA: Lewis 4, Grace 3, Smith, Anderson, Deluca, Wilkinson. Vic Metro: Viojo-Rainbow 3, Nielson, McLaren, Carboni, Sullivan
Best - WA: Walsh, Hille, Miller-Lewis, Anderson, McPhail, Deluca, Tingey. Vic Metro: McLaren, Brayshaw, Lowe, Sullivan, Miller
Western Australia 1.5 6.10 10.12 13.18 (96)
South Australia 2.2 5.4 7.8 11.11 (77)
Goals - Western Australia: Grace 4, Anderson 2, Miller-Lewis 2, Smith, Waterman, Deluca, Garlett, Ah Siu. South Australia: Watchman 5, Markova, Wilkie, Carey, Gregson, Stretch, Johansen
Best - Western Australia: Smith, Ash Siu, Lim, Winton, Tanner, Pickett, Anderson, McPhail. South Australia: Watchman, Pobke, Donkersley, Johansen, Bampton
WA NW 6.1 12.7 17.12 20.16 (136)
South Pacific 1.1 3.3 5.5 7.7 (49)
GOALS - WA NW: Gore 5, Dunn 4, McAdam 3, Ansey 3, Powell 2, Watson, Evans, Pascoe. South Pacific: Savere 2, Havea 2, Frew, Riddell, Johnson
BEST - WA NW: Featonby, Hughes, Powell, Razali, D.Cox, Lindberg, Z. Cox, Sheen. South Pacific: Tirang, Tatupu, Riddell, Peni, Johnson, Miller