Player Pos Age Opposition Ground Date Match
TWJ Prydie W 18y 25d v Italy Millennium Stadium 20 Mar 2010 Details
NW Biggs C 18y 49d v NZ Natives Swansea 22 Dec 1888 Details
DW Howells W 18y 78d v Japan Osaka 8 Jun 2013 Details
E Williams C 18y 213d v England Twickenham 17 Jan 1925 Details
GP North W 18y 214d v South Africa Millennium Stadium 13 Nov 2010 Details
DH Bowen FB 18y 226d v England Swansea 16 Dec 1882 Details
TW Pearson W 18y 238d v England Newport 3 Jan 1891 Details
BL Jones FB 18y 285d v England Twickenham 21 Jan 1950 Details
FM Mills Fwd 18y 290d v England Blackheath 2 Jan 1892 Details
WH Thomas Fwd 18y 294d v Scotland Glasgow 10 Jan 1885 Details
KS Jarrett FB 18y 332d v England Cardiff 15 Apr 1967 Details
E Treharne Fwd 18y 334d v England Blackheath 19 Feb 1881 Details
R Gould Fwd 18y 336d v Ireland Lansdowne Road 28 Jan 1882 Details
W Bancroft FB 18y 336d v Scotland Cardiff 1 Feb 1890 Details
H Tanner SH 18y 346d v New Zealand Cardiff 21 Dec 1935 Details
AF Hill Fwd 18y 363d v Scotland Glasgow 10 Jan 1885 Details
FL Williams FH 19y 7d v Scotland Swansea 2 Feb 1929 Details
GL Lloyd FH 19y 17d v Ireland Lansdowne Road 14 Mar 1896 Details
DPM Lloyd W 19y 27d v Scotland Cardiff 1 Feb 1890 Details
DH Lewis Fwd 19y 29d v England Blackheath 2 Jan 1886 Details
DR Biggar (FH) 19y 29d v Canada Millennium Stadium 14 Nov 2008 Details
HR Robinson W 19y 47d v Barbarians Millennium Stadium 2 Jun 2012 Details
HB Amos W 19y 59d v Tonga Millennium Stadium 22 Nov 2013 Details
WG Stewart-Morgan C 19y 62d v France Swansea 26 Feb 1927 Details
FG Andrews Fwd 19y 112d v England Leeds 5 Jan 1884 Details
WH Lewis FH 19y 122d v Ireland Swansea 13 Mar 1926 Details
GL Henson (UB) 19y 129d v Japan Osaka 10 Jun 2001 Details
T Baker-Jones Fwd 19y 134d v Ireland Lansdowne Road 28 Jan 1882 Details
LC Thomas Fwd 19y 150d v England Swansea 3 Jan 1885 Details
TJ Brewer W 19y 158d v England Twickenham 21 Jan 1950 Details
GR Davies FH 19y 161d v Scotland Murrayfield 1 Feb 1947 Details
A Hickman W 19y 165d v England Cardiff 18 Jan 1930 Details
JC Morley W 19y 175d v England Twickenham 19 Jan 1929 Details
CD Czekaj W 19y 179d v Canada Toronto 11 Jun 2005 Details
JD Bartlett W 19y 183d v Scotland Cardiff 5 Feb 1927 Details
TG Price FB 19y 184d v England Cardiff 16 Jan 1965 Details
TM Barlow FB 19y 187d v Ireland Cardiff 12 Apr 1884 Details
NH Fender F 19y 187d v Ireland Swansea 8 Mar 1930 Details
NR Jenkins FH 19y 195d v England Cardiff 19 Jan 1991 Details
GRR Jones W 19y 196d v England Cardiff 20 Jan 1934 Details
WTH Davies C 19y 204d v Ireland Cardiff 14 Mar 1936 Details
DS Parker P 19y 213d v Ireland Cardiff 8 Mar 1924 Details
RH Bridie HB 19y 216d v Ireland Lansdowne Road 28 Jan 1882 Details
OJ Evans HB 19y 235d v England Llanelli 8 Jan 1887 Details
RR Morris FH 19y 236d v Scotland Swansea 4 Feb 1933 Details
RA Ackerman W 19y 244d v New Zealand Cardiff 1 Nov 1980 Details
A Bassett W 19y 255d v Ireland Swansea 10 Mar 1934 Details
GO Edwards SH 19y 263d v France Colombes 1 Apr 1967 Details
WB Norton 3Q 19y 275d v Ireland Lansdowne Road 28 Jan 1882 Details
G Hayward Fwd 19y 277d v Scotland Swansea 1 Feb 1908 Details

Only the player's first appearance listed

Records include the following current or recent matches:
Wales v Ireland at Millennium Stadium, 1st Test, Aug 31, 2019 [0-0]
Wales v England at Millennium Stadium, 2nd Test, Aug 17, 2019 [0-0]
Wales v Ireland at Millennium Stadium, Six Nations, Mar 16, 2019 [0-0]