Player Pos Age Opposition Ground Date Match
MR Patchell (R) 19y 113d v Edinburgh Cardiff Arms Park 7 Sep 2012 Details
HR Robinson W 19y 138d v Connacht Galway 1 Sep 2012 Details
T Davies P 19y 175d v Connacht Galway 1 Sep 2012 Details
L Jones SH 19y 282d v Connacht Galway 1 Sep 2012 Details
CL Allen (R) 20y 18d v Glasgow Glasgow 1 Mar 2013 Details
LJ Hamilton (R) 20y 238d v Connacht Galway 1 Sep 2012 Details
TR Young F 20y 273d v Edinburgh Murrayfield 15 Feb 2013 Details
M Cook L 20y 330d v Zebre Parma 25 Nov 2012 Details
OR Williams (R) 21y 31d v Munster Cardiff Arms Park 2 Nov 2012 Details
T Williams FB 21y 166d v Dragons Newport 15 Sep 2012 Details
JR Navidi F 21y 246d v Connacht Galway 1 Sep 2012 Details
D Fish FB 21y 257d v Connacht Galway 1 Sep 2012 Details
P Tamba (R) 22y 17d v Munster Cork 5 Jan 2013 Details
ACG Cuthbert W 22y 155d v Edinburgh Cardiff Arms Park 7 Sep 2012 Details
R Williams H 22y 235d v Edinburgh Cardiff Arms Park 7 Sep 2012 Details
LD Williams (R) 22y 276d v Connacht Galway 1 Sep 2012 Details
KDV Dacey (R) 23y 52d v Dragons Newport 15 Sep 2012 Details
SA Andrews (R) 23y 52d v Treviso Cardiff Arms Park 22 Sep 2012 Details
J Tovey (R) 23y 147d v Treviso Cardiff Arms Park 22 Sep 2012 Details
SL Halfpenny FB 23y 260d v Edinburgh Cardiff Arms Park 7 Sep 2012 Details
R Watts-Jones F 23y 261d v Connacht Galway 1 Sep 2012 Details
SK Warburton F 23y 338d v Edinburgh Cardiff Arms Park 7 Sep 2012 Details
S Hobbs (R) 24y 173d v Munster Cardiff Arms Park 2 Nov 2012 Details
RM Lewis (R) 24y 313d v Ulster Cardiff Arms Park 28 Sep 2012 Details
R Copeland L 24y 314d v Connacht Galway 1 Sep 2012 Details
L Reed (R) 24y 357d v Connacht Galway 1 Sep 2012 Details
J Down L 25y 3d v Connacht Galway 1 Sep 2012 Details
R Smith C 25y 58d v Munster Cork 5 Jan 2013 Details
TE James W 25y 137d v Connacht Galway 1 Sep 2012 Details
TAM Paulo L 25y 137d v Treviso Treviso 23 Mar 2013 Details
M Breeze (R) 25y 209d v Edinburgh Cardiff Arms Park 7 Sep 2012 Details
BS Davies L 25y 242d v Edinburgh Cardiff Arms Park 7 Sep 2012 Details
JH Roberts (R) 25y 312d v Dragons Newport 15 Sep 2012 Details
L Davies (R) 26y 140d v Connacht Cardiff Arms Park 22 Feb 2013 Details
A Walker (R) 26y 148d v Dragons Cardiff Arms Park 26 Dec 2012 Details
A Pretorius N8 26y 341d v Connacht Galway 1 Sep 2012 Details
D Hewitt C 27y 17d v Edinburgh Cardiff Arms Park 7 Sep 2012 Details
CD Czekaj (R) 27y 63d v Edinburgh Murrayfield 15 Feb 2013 Details
B Bourrust (R) 27y 77d v Connacht Galway 1 Sep 2012 Details
NL Trevett (R) 27y 162d v Connacht Galway 1 Sep 2012 Details
MJS Paterson (R) 27y 200d v Zebre Parma 25 Nov 2012 Details
GDC Ma'afu (R) 27y 278d v Treviso Cardiff Arms Park 22 Sep 2012 Details
GD Evans C 28y 45d v Connacht Galway 1 Sep 2012 Details
G Davies C 28y 183d v Connacht Galway 1 Sep 2012 Details
AS Kyriacou H 29y 241d v Connacht Galway 1 Sep 2012 Details
C Sweeney FH 32y 224d v Connacht Galway 1 Sep 2012 Details
T Filise P 35y 98d v Connacht Galway 1 Sep 2012 Details

Only the player's first appearance listed

Records include the following current or recent matches:
Cardiff Blues v Zebre at Cardiff Arms Park, RaboDirect PRO12 Round 20, Apr 13, 2013 [28-13 FT]
Cardiff Blues v Ospreys at Millennium Stadium, RaboDirect PRO12 Round 19, Mar 30, 2013 [16-23 FT]
Cardiff Blues v Connacht at Cardiff Arms Park, RaboDirect PRO12 Round 16, Feb 22, 2013 [22-26 FT]