Premiership History
Year | 1st Grade - The Rutledge Loutat Shield | 2nd Grade - The GPS Debating Cup |
|---|---|---|
| The Rutledge Louat Shield is awarded to the Firsts team with the highest total number of wins | The GPS Debating Cup is awarded to the Seconds team with the highest total number of wins | |
| 1920 | SCEGS | |
| 1921 | SBHS | |
| 1922 | SGS | |
| 1923 | TSC | |
| 1924 | SBHS | |
| 1925 | SGS | |
| 1926 | SGS | |
| 1927 | TKS | |
| 1928 | TKS | |
| 1929 | SBHS | |
| 1930 | SCEGS | |
| 1931 | SCEGS | |
| 1932 | SGS | |
| 1933 | SGS | |
| 1934 | TKS | |
| 1935 | SIC | |
| 1936 | SCEGS | |
| 1937 | SCEGS | |
| 1938 | SBHS | |
| 1939 | SBHS | |
| 1940 | SIC | |
| 1941 | SBHS | |
| 1942 | N/A | |
| 1943 | SBHS | |
| 1944 | TSC | |
| 1945 | SCEGS | |
| 1946 | SBHS | |
| 1947 | SGS | |
| 1948 | SGS | |
| 1949 | SGS | |
| 1950 | SBHS | |
| 1951 | SGS | |
| 1952 | SBHS | |
| 1953 | SJC | |
| 1954 | SIC | |
| 1955 | SBHS | |
| 1956 | TSC | |
| 1957 | SIC | |
| 1958 | NC | |
| 1959 | SJC | |
| 1960 | SIC | |
| 1961 | SCEGS | |
| 1962 | SJC | |
| 1963 | SGS | |
| 1964 | SIC | |
| 1965 | SGS | |
| 1966 | SIC | |
| 1967 | SIC | |
| 1968 | SIC | |
| 1969 | SIC | |
| 1970 | SIC | |
| 1971 | SIC | |
| 1972 | SGS | |
| 1973 | SIC | |
| 1974 | SIC | |
| 1975 | SIC | |
| 1976 | SIC | |
| 1977 | SIC | |
| 1978 | SCEGS | |
| 1979 | SIC | |
| 1980 | SIC | |
| 1981 | SGS | SGS |
| 1982 | SIC | SIC/SGS |
| 1983 | SIC | TKS |
| 1984 | SJC | N/A |
| 1985 | SGS/SIC | SBHS |
| 1986 | SIC | TKS |
| 1987 | TSC/SIC | SGS |
| 1988 | SGS/SIC | NC |
| 1989 | SJC | SGS |
| 1990 | SIC | SIC |
| 1991 | TKS/SJC | SIC |
| 1992 | SBHS | SBHS/SCEGS |
| 1993 | SGS | SCEGS |
| 1994 | SIC | SIC |
| 1995 | SIC | SBHS |
| 1996 | SIC | SIC |
| 1997 | SIC | NC |
| 1998 | SIC | SGS |
| 1999 | SGS | SIC |
| 2000 | SBHS | SIC |
| 2001 | SIC | SBHS |
| 2002 | SIC | SIC |
| 2003 | SIC | SBHS |
| 2004 | SJC | SIC |
| 2005 | SIC | SIC/Shore |
| 2006 | SBHS/SIC | SIC |
| 2007 | SGS | Shore/SGS/SIC |
| 2008 | SIC/SBHS | SGS |
| 2009 | SGS | SGS |
| 2010 | SGS | SGS |
| 2011 | SGS | SBHS |
| 2012 | SGS | SBHS |
| 2013 | SGS | SGS |
| 2014 | SGS | SBHS/Shore/SGS/SIC/SJC |
| 2015 | SBHS | SGS/SIC |
| 2016 | SBHS | SGS |
| 2017 | SBHS | SGS/SBHS |
| 2018 | SBHS | SGS |
| 2019 | SGS | SGS |
| 2020 | SIC | SGS |
| 2021 | SGS | SGS |
| 2022 | SJC | SGS / SJC |
| 2023 | SHORE / SJC | SGS / SJC |
| 2024 | SBHS | SGS |
| 2025 | SGS | SIC |
| 2026 | ||
