| SD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 15-Sep-2012 |  Jordan Williams | Scarlets | Wales | 20-Sep-1993 | 18(361) |
| 01-Mar-2013 |  Ieuan Jones | Gwent Dragons | Wales | 22-Jul-1993 | 19(222) |
| 12-Apr-2013 | Robbie Henshaw | Connacht | Ireland | 12-Jun-1993 | 19(304) |
| 22-Feb-2013 |  Harry Robinson | Cardiff Blues | Wales | 16-Apr-1993 | 19(312) |
| 02-Nov-2012 | Lewis Jones | Cardiff Blues | Wales | 24-Nov-1992 | 19(343) |
| 03-May-2013 | Rhys Patchell | Cardiff Blues | Wales | 17-May-1993 | 19(351) |
| 19-Apr-2013 |  Stuart Olding | Ulster | Ireland | 11-Mar-1993 | 20(39) |
| 23-Nov-2012 | Peter Nelson | Ulster | Canada | 05-Oct-1992 | 20(49) |
| 29-Mar-2013 | Mark Bennett | Glasgow Warriors | Scotland | 03-Feb-1993 | 20(54) |
| 25-Nov-2012 |  JJ Hanrahan | Munster | Ireland | 27-Jul-1992 | 20(121) |
SD = Scored date ,
DOB = Date of birth ,
A(D) = Age(days) .