Super W

The league commenced in the 2018 season as an amateur league. Buildcorp were named as the league's naming rights partner, while Gilbert were named as the official supplier of the league's rugby balls.^[] For the inaugural season, the teams' playing lists were constructed from scratch throughout the later stages of 2018. Clubs were asked to nominate a list of desired players, with the Super W assigning two of these "marquee" players to each club. In addition, clubs were able to sign a number of players with existing connections to the club, or with arrangements for club sponsored work or study.^[] In the 2019 season, the Western Force were replaced by a team representing RugbyWA.

The 2020 season was suspended following the fifth and final round of the regular season, due to lockdowns imposed by various state governments in late March, following the outbreak of COVID-19 in Australia. The planned playoff between the second-placed Reds and third-placed Brumbies, and the subsequent grand final, were cancelled in April; the first-placed Waratahs were declared champions once more. The Waratahs would finish a fourth straight undefeated season in 2021, which was played almost entirely at Coffs Harbour International Stadium in a pool format, and featured the temporary addition of a "President's XV" team composed of players from New South Wales and Queensland. The Western Force returned to the league, but withdrew after the first round to avoid the continuing COVID-19 pandemic in New South Wales.