The Group runs a first grade, reserve grade, under 18s and under 16s competition under the Wests Cup name. All six first grade clubs run at least one lower grade team and most will have three or four. In addition to the six first grade clubs, there is also one junior club involved in under 16s: Farrer MAHS. It also runs a second division competition called the Wests Shield. The second division competition includes stand-alone senior teams from smaller towns within the region. Some of these clubs also run women's LeagueTag sides.
There are also Group 4 senior Under 18s and Under 16s representative teams that competes against other Group sides. They compete against Groups 19 and 21 in trials for the Greater Northern Tigers regional team.