St Marys Junior Rugby League Senior Premierships

Western Districts Junior Rugby League 1908 to 1946

Year:1945
Coach: Sivio Fornari

Parramatta Districts Junior Rugby League 1947 to 1966

Year: 1957
Coach: Lance Thompson

Year: 1961, 1962, 1963, 1965
Coach: Martin Gallagher

N.S.W 2nd Division (Later Renamed Metropolitan Cup in 1974)

Year: 1993, 1994
Coach: Mark O’Rielly

Year: 2001
Coach: Tim O’Brien

Penrith Districts Junior Rugby League 1967-

Year: 1977, 1978
Coach: Tony Mitchell

Year: 1980
Coach: Jeff Breadsell

Year: 1984
Coach: Mick Lewis

Year: 1987
Coach: Cliff Cartwright

Year: 1990
Coach: Ron Coskerie

Year:1993
Coach: Phil Sullivan

Year: 1995
Coach: Doug Falconer

Year: 1999, 2000
Coach: Mick Cartwright

Year: 2002
Coach: Brett Hill

Year: 2005, 2007
Coach: Bob Beveridge

Year: 2010
Coach: Troy Cassell

Year: 2013
Coach: Gavin White

Year: 2015
Coach: Brad Drew

NSWRL Ron Massey Cup/Sydney Shield

Year: 2017
Coach: Luke Swain

Year: 2022
Coach: Glenn Jones

Year: 2023
Coach: Darren Baker

St Marys Ron Massey Cup Premiers 2023