| WELSH NATIONAL CHAMPIONSHIPS | ||||
| U25 SINGLES | ||||
| YEAR | WINNER | FINALIST | ||
| 2024 | Ryan Davies | Llandrindod Wells | Rhys Colwill | Briton Ferry Combine |
| 2023 | Ben Evans | Newtown | Chaad Bowling | Graig Merthyr |
| 2022 | Ryan Davies | Beaufort | Ashley Naylor | St. Julians |
| 2021 | A. Rees | Beaufort | K. Crocker | Gilfach Bargoed |
| 2020 | Not Played | Not Played | Not Played | Not Played |
| 2019 | R Atkins | (Llandrindod Wells) | M John | (Whitland) |
| 2018 | K. Crocker | (Gilfach/Bargoed) | B. Barnett | (Parc Y Dre) |
| 2017 | R. Owen | (Harlequins) | J. Wilshire | (Abertillery) |
| 2016 | D Salmon | (Penylan) | J Davies | (Harlequins) |
| 2015 | J. Davies | (Harlequins) | C. Parsons | (Dinas Powis) |
| 2014 | J. Williams | (Glyncorrwg) | L Davies | (Ferndale) |
| 2013 | A. Howells | (Ammanford Park) | N. Scoot | (Guest Memorial) |
| 2012 | N. Evans | (Kerry) | G. Rees | (BSC Landore) |
| 2011 | P. Taylor | (Bridgend) | L. Bouse | (Ystrad Mynach) |
| 2010 | M. Newcombe | (Cardigan) | O. Dando | (Brynmawr) |
| 2009 | R. Fielding | (Pontyclun) | R. Davies | (Ammanford Park) |
| 2008 | M. Thomas | (Ystradfechan) | K. James | (Cardigan) |
| 2007 | J. Tomlinson | (Pontrhydyfen) | K. James | (Cardigan) |
| 2006 | D. Doubler | (Penylan) | C. Court | (Whitland) |
| 2005 | D. Axon | (Penylan) | M. Jones | (Newtown) |
| 2004 | G. Thomas | (Ammanford Park) | R. Ace | (Resolven) |
| 2003 | G. Harris | (Caerphilly Town) | I. Henderson | (Caerphilly Town) |
| 2002 | J. Tomlinson | (Pontrhydyfen) | S. Turner | (Parc-y-dre) |
| 2001 | C. Ashman | (Ely Valley) | K. Wall | (Cwmbran) |
| 2000 | J. Davies | (Aberavon) | M. Wyatt | (Caerphilly Town) |
| 1999 | N. Rees | (Parc Y Dre) | K. Stephens | (Llandrindod Wells) |
| 1998 | W. Phillips | (Presteigne) | R. Waters | (St. Gabriel’s) |
| 1997 | B. Evans | (Pontrhydyfen) | J. Rumsey | (Newport Athletic) |
| 1996 | N. Collett | (Penylan) | G. Williams | (Pembroke Dock) |
| 1995 | N. Jones | (Dinas Powys) | ||
| 1994 | J. Thomas | (Tybie) | N. Collett | (Cardiff) |
| 1993 | N. Jones | (Dinas Powys) | J. Davies | (Pontrhydyfen) |
| 1992 | G. Williams | (Pembroke Dock) | J. Greenslade | (St. Fagans) |
| 1991 | P. Robins | (Ely Valley) | I. Slade | (Abercarn) |
| 1990 | J. Greenslade | (St. Fagans) | A. Price | (Ammanford) |
| 1989 | M. Prosser | (Ely Valley) | B. Powell | (Abercarn) |
| 1988 | J. Greenslade | (St. Fagans) | S. Evans | (Saundersfoot) |
| 1987 | W. Matthews | (Graig Merthyr) | G. Harris | (Aberaeron) |
| 1986 | R. Weale | (Presteigne) | S. Evans | (Saundersfoot) |
| 1985 | S. Rees | (Old Landorians) | M. Weaver | (Montgomery) |
| 1984 | R. Weale | (Presteigne) | R. Cope | (Newport Athletic) |
| 1983 | J. Price | (Aberavon) | K. Jones | (Gelligaled) |
| 1982 | D. Vowles | (Barry Central) | E. Evans | (Ammanford) |
| 1981 | G.J. Hazell | (Cardiff Athletic) | M. Robert | (Berry Port) |