The 2013 season will open with a bumper round of four matches during an AFL-free weekend.

A feature of the fixtures released yesterday was an emphasis on avoiding direct clashes with AFL matches involving WA clubs.

A derby between East Perth and West Perth is part of the opening round.

Three games will be played on Anzac Day and two on Good Friday, with the traditional WA Day derby between East and South Fremantle on Sunday, June 2, avoiding a clash with the match between West Coast and Richmond at Patersons Stadium on WA Day (June 3).

WA will play a State match with the VFL, most likely at a country venue, on May 11.