The competition is run under the auspices of the Country Rugby League and players are eligible for selection in the Canberra Division of the CRL Tier 1 Divisional Championships.
After the establishment of Rugby League in Sydney in 1909, the game slowly made its way south, reaching the Canberra District in the late 1910s.
Teams from Canberra, Yass, Queanbeyan and Goulburn competed for the title of premiers up until 1941, when all League competitions in the region were suspended due to the war.
Group 8 First Division consisted mainly of the teams which play Canberra Raiders Cup today, with the addition of Crookwell and Goulburn United.
Second Division was much like George Tooke Shield is today, with teams from Harman, Bungendore, Weston Creek and Captains Flat all competing for the title.
In 1982 CDRL was granted entry into the NSWRL as the Canberra Raiders so the ACTRL took over the running of senior league in the district, combining the two groups to form 3 new competitions.
In 1998, after 35 years, the Molonglo Shield was retired and the Canberra Raiders Cup became the prize the first grade clubs competed for over a season.