The format of the 1985 season remained unchanged from the previous year; teams played a total of 21 first-grade games over the pre-season, three games against other Brisbane sides during the Winfield State League, and the 14-round regular season. Teams played each other three times, twice during the regular season and once during either the pre-season or state league. It resulted in a top four of Southern Suburbs, Past Brothers, Wynnum-Manly and Fortitude Valley.
The 1985 Winfield State League was the inaugural season of the Queensland Rugby League's statewide competition. A total of 14 teams competed in the season, 8 of which were BRL Premiership clubs. The remaining six were regional teams from across the state, hence the State League name. The finals were straight final four series held at QRL headquarters at Lang Park, with Wynnum-Manly and the Brisbane Brothers winning their respective semi finals. In the final, the Seagulls completed a 16-0 shutout of the Brothers to win their second consecutive Winfield State League title.