Mervyn Porter Trophy - u15 Knockout
| Year | Club |
| 1973 | Clifton |
| 1974 | Clifton |
| 1975 | Little Lever |
| 1976 | Clifton |
| 1977 | Bradshaw |
| 1978 | Heaton |
| 1979 | Eagley |
| 1980 | Westhoughton |
| 1981 | Westhoughton |
| 1982 | Horwich |
| 1983 | Tonge |
| 1984 | Walkden |
| 1985 | Walkden |
| 1986 | Heaton |
| 1987 | Bradshaw |
| 1988 | Bradshaw |
| 1989 | Greenmount |
| 1990 | Walkden |
| 1991 | Heaton |
| 1992 | Tonge |
| 1993 | Farnworth SC |
| 1994 | Egerton |
| 1995 | Westhoughton |
| 1996 | Greenmount |
| 1997 | Astley Bridge |
| 1998 | Walkden |
| 1999 | Little Lever |
| 2000 | Bradshaw |
| 2001 | Horwich |
| 2002 | Horwich |
| 2003 | Horwich |
| 2004 | Farnworth SC |
| 2005 | Farnworth SC |
| 2006 | Astley Bridge |
| 2007 | Horwich |
| 2008 | Heaton |
| 2009 | Horwich |
| 2010 | Heaton |
| 2011 | Heaton |