| | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2022 | 2023 | 2024 | 2025 |
| show all bands | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| British Fuels (Parc & Dare) | | C 3 | C 1 | C 4 | C disq | C 4 | C 5 | C 3 | C 5 | C 4 | C 9 | C 5 | C 7 | C 5 | C 6 | C 8 | C 10 | 1 1 | 1 1 | C 3 | C 7 | C 6 | | 1 6 | 1 8 | | 2 3 | 2 2 | 1 3 | 1 4 | 1 1 | C 8 | | 1 5 | 1 5 | 1 6 | 1 4 | 1 1 |
| BTM | | C 2 | C 2 | C 2 | C 1 | C 5 | C 1 | C 2 | C 4 | C 3 | C 4 | C 2 | | C 4 | C 7 | C 6 | C 4 | C 5 | C 2 | C 6 | C 3 | C 2 | C 4 | C 4 | C 5 | C 4 | C 8 | | C 7 | 1 7 | 1 4 | 1 6 | 1 7 | 1 1 | 1 3 | 1 4 | 1 2 | C 8 |
| Cory | | C 1 | C 4 | C 3 | C 7 | C 2 | C 3 | C 1 | C 3 | C 5 | C 2 | C 1 | C 3 | C 1 | C 4 | C 1 | C 1 | C 1 | C 1 | C 1 | C 1 | C 3 | C 1 | C 2 | C 1 | C 1 | C 5 | C 1 | C 1 | C 2 | C 1 | C 1 | C 3 | C 2 | C 1 | C 2 | C 1 | C 3 |
| Cwmaman Institute Silver | | 3 8 | 3 6 | 3 2 | 2 1 | 1 6 | 1 1 | 1 1 | C 7 | C 7 | C 5 | C 4 | C 5 | C 6 | C 5 | C 4 | C 7 | C 3 | C 3 | C 8 | C 5 | C 8 | C 7 | C 7 | | | | | | | | | | | | | | |
| Northop Silver | | | | | | | | 1 2 | C 2 | C 2 | C 6 | | C 4 | C 8 | C 3 | C 7 | C 9 | C 9 | 1 6 | 1 1 | 1 1 | C 5 | C 3 | C 5 | C 6 | C 6 | C 3 | C 6 | C 3 | C 5 | C 7 | C 5 | C 2 | C 6 | C 3 | | 1 1 | C 4 |
| Penclawdd Brass | | C 5 | C 3 | C 6 | C 5 | C 6 | C 4 | C 4 | C 9 | C 8 | C 8 | 1 7 | 1 6 | 1 6 | 1 8 | 2 1 | 2 2 | 1 3 | 1 8 | 1 2 | 1 4 | 1 5 | C 10 | C 10 | 1 5 | 1 7 | 1 2 | | 1 9 | 2 8 | 2 2 | 2 7 | 2 3 | 2 9 | 2 8 | 2 4 | 3 1 | 3 8 |
| Point of Ayr Colliery (EIMCO) | | | | | | | | C 5 | C 7 | C 6 | C 1 | C 3 | C 1 | C 3 | C 2 | | | | | | | 2 1 | 1 1 | C 8 | | | | | | | | | | | | | | |
| Thomas Coaches Mid Rhondda | | 2 2 | C 6 | C 5 | C 2 | C 3 | C 6 | C 6 | C 6 | 1 2 | 1 4 | 1 1 | C 8 | C 9 | C 9 | 1 2 | C 8 | C 7 | C 9 | 1 6 | 1 3 | 1 6 | | | | 3 6 | 3 5 | 3 3 | 3 2 | 2 1 | 1 8 | 1 9 | 2 4 | 2 6 | 2 2 | 2 9 | 2 9 | 3 2 |
| Tredegar Town | | C 7 | C 5 | C 1 | C 3 | C 1 | C 2 | | C 1 | C 1 | C 3 | C 6 | C 2 | C 2 | C 1 | C 3 | C 2 | C 2 | C 4 | C 4 | C 2 | C 1 | C 2 | C 1 | C 3 | C 3 | C 2 | C 2 | C 2 | C 1 | C 2 | C 2 | C 1 | C 1 | C 2 | C 1 | C 2 | C 1 |