| Reserve KO (Cup donated by Hawkinsport) | ||
| Year | Winners | Runners-up |
| 1975 | Holmer Green Res | (Coleshill Res) |
| 1976 | Holmer Green Res | (Winchmore Hill Res) |
| 1977 | Lacey Green Res | (Booker Res) |
| 1978 | Winchmore Hill Res | (Great Kingshill Res) |
| 1979 | Winchmore Hill Res | (Lacey Green Res) |
| 1980 | Booker Res | (Holmer Green Res) |
| 1981 | Booker Res | (Holmer Green Res) |
| 1982 | Holmer Green Res | (BroomWade Res) |
| 1983 | Winchmore Hill Res | (Hazlemere Res) |
| 1984 | Hazlemere Res | (BroomWade Res) |
| 1985 | Bradenham Res | (Downley Res) |
| 1986 | Penn & Tylers Green Res | (Downley Res) |
| 1987 | Penn & Tylers Green Res | (Bledlow Ridge Res) |
| 1988 | Hazlemere Res | (BroomWade Res) |
| 1989 | Holmer Green Res | (Lane End Res) |
| 1990 | Coleshill Res | (Booker Res) |
| 1991 | Penn & Tylers Green Res | (Holmer Green Res) |
| 1992 | Prestwood Res | (Great Kingshill Res) |
| 1993 | Lacey Green Res | (Prestwood Res) |
| 1994 | Lacey Green Res | (Prestwood Res) |
| 1995 | Downley Res | (Cadmore End Res) |
| 1996 | Lacey Green Res | (Lane End Res) |
| 1997 | Holmer Green Res | (Lacey Green Res) |
| 1998 | Holmer Green Res | (Lacey Green Res) |
| 1999 | Bovingdon Res | (Downley Res) |
| 2000 | Hawridge & Choles. Res | (Lacey Green Res) |
| 2001 | Lacey Green Res | (Hawridge & Choles. Res) |
| 2002 | Cadmore End Res | (Lacey Green Res) |
| 2003 | Bucks CC Res | (BroomWade Res) |
| 2004 | Widmer End SM Res | (Lacey Green Res) |
| 2005 | Widmer End SM Res | (Lacey Green Res) |
| 2006 | Lacey Green Res | (Ley Hill Res) |
| 2007 | Hughenden Valley Res | (Holmer Green Res) |
| 2008 | Lacey Green Res | (Hughenden Valley Res) |
| 2009 | Ley Hill Res | (The Lee Res) |