Senior 3rds League: Foster
Leinster Schools Senior Thirds League: Forster Cup History
| Year |
Winner |
| 1974 |
St. Clonleth's College |
| 1975 |
St. Clonleth's College |
| 1976 |
St. Gerard's School |
| 1977 |
Terenure College |
| 1978 |
Clongowes Wood College |
| 1979 |
Terenure College |
| 1980 |
Castleknock College |
| 1981 |
Presentation College, Bray |
| 1982 |
Castleknock College |
| 1983 |
The King's Hospital |
| 1984 |
Terenure College |
| 1985 |
Blackrock College |
| 1986 |
Terenure College |
| 1987 |
Castleknock College |
| 1988 |
Newbridge College |
| 1989 |
Blackrock College |
| 1990 |
St. Paul's College |
| 1991 |
Blackrock College |
| 1992 |
Blackrock College |
| 1993 |
Blackrock College |
| 1994 |
Castleknock College |
| 1995 |
C.B.C. Monkstown |
| 1996 |
Newbridge College |
| 1997 |
St. Mary's College |
| 1998 |
Blackrock College |
| 1999 |
St. Mary's College |
| 2000 |
Cistercian College |
| 2001 |
Clongowes Wood College |
| 2002 |
Moyne Community School |
| 2003 |
Clongowes Wood College |
| 2004 |
Blackrock College |
| 2005 |
Sandford Park School |
| 2006 |
Belvedere College |
| 2007 |
Belvedere College |
| 2008 |
Newpark Comprehensive School |
