| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 26-Jan-2013 | Dafydd Howells | Wales | 22-Mar-1995 | 17(311) |
| 29-Jan-2010 | Tom Prydie | Wales | 23-Feb-1992 | 17(341) |
| 02-Feb-2018 | Dewi Cross | Wales | 06-Dec-1999 | 18(59) |
| 06-Nov-2010 | Matthew Morgan | Wales | 23-Apr-1992 | 18(197) |
| 26-Jan-2018 | Cai Evans | Wales | 23-Jun-1999 | 18(218) |
| 04-Feb-2010 | Hanno Dirksen | South Africa | 31-Mar-1991 | 18(311) |
| 26-Jan-2018 | Callum Carson | Wales | 13-Mar-1999 | 18(320) |
| 10-Nov-2017 | Will Jones | Wales | 03-Dec-1998 | 18(343) |
| 11-Nov-2016 | James Ratti | Wales | 14-Oct-1997 | 19(28) |
| 17-Nov-2012 | Sam Davies | Wales | 06-Oct-1993 | 19(42) |
| 26-Jan-2013 | Rhodri Hughes | Wales | 26-Nov-1993 | 19(61) |
| 09-Oct-2005 | Aled Brew | Wales | 09-Aug-1986 | 19(61) |
| 05-Nov-2009 | Kristian Phillips | Wales | 02-Sep-1990 | 19(64) |
| 10-Nov-2017 | Morgan Morris | Wales | 28-Aug-1998 | 19(74) |
| 18-Nov-2016 | Phil Jones | Wales | 09-Aug-1997 | 19(101) |
| 14-Nov-2009 | James King | Wales | 24-Jul-1990 | 19(113) |
| 15-Oct-2011 | Tom Habberfield | Wales | 19-May-1992 | 19(148) |
| 11-Nov-2016 | Matthew Aubrey | Wales | 04-Jun-1997 | 19(160) |
| 04-Dec-2005 | Martin Roberts | Wales | 06-Jun-1986 | 19(181) |
| 15-Oct-2011 | Eli Walker | Wales | 28-Mar-1992 | 19(200) |
| 26-Jan-2013 | Dan Suter | Wales | 29-Jun-1993 | 19(211) |
| 14-Nov-2009 | Ashley Beck | Wales | 15-Apr-1990 | 19(213) |
| 07-Nov-2014 | Rory Thornton | Wales | 16-Mar-1995 | 19(236) |
| 06-Nov-2010 | Ben John | Wales | 28-Feb-1991 | 19(251) |
| 10-Nov-2017 | Reuben Morgan-Williams | Wales | 02-Feb-1998 | 19(281) |
| 31-Jan-2014 | Nicky Smith | Wales | 07-Apr-1994 | 19(299) |
| 05-Oct-2008 | Rhys Webb | Wales | 09-Dec-1988 | 19(300) |
| 07-Nov-2014 | Jordan Collier | Wales | 07-Dec-1994 | 19(335) |
| 27-Jan-2012 | Ross Jones | Wales | 11-Jan-1992 | 20(16) |
| 08-Nov-2013 | Matthew Jenkins | Wales | 30-Sep-1993 | 20(39) |
| 09-Oct-2005 | Andrew Bishop | Wales | 07-Aug-1985 | 20(63) |
| 04-Dec-2005 | Alan Wyn Jones | Wales | 19-Sep-1985 | 20(76) |
| 14-Nov-2009 | Justin Tipuric | Wales | 06-Aug-1989 | 20(100) |
| 07-Nov-2014 | Scott Otten | Wales | 19-Jul-1994 | 20(111) |
| 18-Nov-2016 | Sam Underhill | England | 22-Jul-1996 | 20(119) |
| 14-Nov-2014 | Rob Dudley-Jones | Wales | 03-Jun-1994 | 20(164) |
| 10-Nov-2017 | Kieran Williams | Wales | 12-Apr-1997 | 20(212) |
| 31-Jan-2015 | Oliver Cracknell | Wales | 26-May-1994 | 20(250) |
| 11-Nov-2016 | Joe Thomas | Wales | 21-Feb-1996 | 20(264) |
| 18-Nov-2016 | Adam Beard | Wales | 07-Jan-1996 | 20(316) |
| 05-Nov-2009 | Ryan Bevington | Wales | 09-Dec-1988 | 20(331) |
| 15-Oct-2011 | Sam Lewis | Wales | 11-Nov-1990 | 20(338) |
| 27-Jan-2012 | Lloyd Peers | Wales | 02-Feb-1991 | 20(359) |
| 05-Nov-2009 | Gareth Owen | Wales | 05-Nov-1988 | 20(365) |
| 09-Oct-2005 | Ian Evans | Wales | 04-Oct-1984 | 21(5) |
| 15-Oct-2011 | Joe Rees | Wales | 31-Aug-1990 | 21(45) |
| 11-Nov-2016 | Luke Price | Wales | 26-Sep-1995 | 21(47) |
| 27-Oct-2007 | Ben Lewis | Wales | 26-Aug-1986 | 21(62) |
| 07-Nov-2014 | Gareth Thomas | Wales | 02-Aug-1993 | 21(97) |
| 07-Oct-2006 | James Hook | Wales | 27-Jun-1985 | 21(102) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).