Year Premiers
1961 Manly Warringah Sea Eagles
1962 South Sydney Rabbitohs
1963 Canterbury-Bankstown Bulldogs
1964 South Sydney Rabbitohs
1965 Western Suburbs Magpies
1966 South Sydney Rabbitohs
1967 South Sydney Rabbitohs
1968 South Sydney Rabbitohs
1969 South Sydney Rabbitohs
1970 Parramatta Eels
1971 Canterbury-Bankstown Bulldogs
1972 South Sydney Rabbitohs
1973 Balmain Tigers
1974 Manly Warringah Sea Eagles
1975 St George Dragons
1976 Canterbury-Bankstown Bulldogs
1977 Penrith Panthers
1978 South Sydney Rabbitohs
1979 Canterbury-Bankstown Bulldogs
1980 Balmain Tigers
1981 Western Suburbs Magpies
1982 Balmain Tigers
1983 Canterbury-Bankstown Bulldogs
1984 Balmain Tigers
1985 Parramatta Eels
1986 Penrith Panthers
1987 Manly Warringah Sea Eagles
1988 Balmain Tigers
1989 Canberra Raiders
1990 Parramatta Eels
1991 Newcastle Knights
1992 Newcastle Knights
1993 Canberra Raiders
1994 Balmain Tigers
1995 Sydney City Roosters
1996 St George Dragons
1997 Balmain Tigers
1998 North Sydney Bears
1999 Canterbury-Bankstown Bulldogs
2000 Canterbury-Bankstown Bulldogs
2001 Canterbury-Bankstown Bulldogs
2002 Sydney Roosters
2003 Canterbury-Bankstown Bulldogs
2004 Sydney Roosters
2005 St George Illawarra Dragons
2006 Penrith Panthers
2007 Penrith Panthers
2018 Cronulla-Sutherland Sharks
2019 South Sydney Rabbitohs
2020 None
2021 None
2022 Penrith Panthers
2023 Canterbury-Bankstown Bulldogs
2024 Canterbury-Bankstown Bulldogs
2025 Melbourne Storm

Format
Under-17 (1961–1968, 1976–1977)
Under-18 (1969–1975, 1978–1984)
Under-19 (1985–1996, 2003)
Under-20 (1997–2002, 2004–2007, 2018–2020)
Under-21 (2021–present)

Most Premierships
11 Canterbury-Bankstown Bulldogs (1963, 1971, 1976, 1979, 1983, 1999, 2000, 2001, 2003, 2023, 2024)
9 South Sydney Rabbitohs (1962, 1964, 1966, 1967, 1968, 1969, 1972, 1978, 2019)
7 Balmain Tigers (1973, 1980, 1982, 1984, 1988, 1994, 1997)
5 Penrith Panthers (1977, 1986, 2006, 2007, 2022)
3 Manly Warringah Sea Eagles (1961, 1974, 1987)
3 Parramatta Eels (1970, 1985, 1990)
3 Sydney Roosters (1995, 2002, 2004)
2 Canberra Raiders (1989, 1993)
2 St George Dragons (1975, 1996)
2 Newcastle Knights (1991, 1992)
2 Western Suburbs Magpies (1965, 1981)
1 Cronulla-Sutherland Sharks (2018)
1 Melbourne Storm (2025)
1 North Sydney Bears (1998)
1 St George Illawarra Dragons (2005)

Most Consecutive
4 South Sydney Rabbitohs (1966 to 1969)
3 Canterbury-Bankstown Bulldogs (1999 to 2001)
2 Canterbury-Bankstown Bulldogs (2023 to 2024)
2 Newcastle Knights (1991 to 1992)
2 Penrith Panthers (2006 to 2007)