| SD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 11-Feb-2018 |  Corey Baldwin | Scarlets | Wales | 13-Oct-1999 | 18(122) |
| 02-Dec-2017 |  Will Jones | Ospreys | Wales | 03-Dec-1998 | 18(365) |
| 24-Feb-2018 | Ryan Conbeer | Scarlets | Wales | 05-Feb-1999 | 19(19) |
| 22-Sep-2017 | Dane Blacker | Gwent Dragons | Wales | 06-Jul-1998 | 19(78) |
| 06-Jan-2018 | Matt Fagerson | Glasgow Warriors | Scotland | 16-Jul-1998 | 19(174) |
| 02-Sep-2017 | Keelan Giles | Ospreys | Wales | 29-Jan-1998 | 19(216) |
| 24-Feb-2018 | Ioan Nicholas | Scarlets | Wales | 03-Apr-1998 | 19(327) |
| 22-Sep-2017 | Will Talbot-Davies | Gwent Dragons | Wales | 11-Sep-1997 | 20(11) |
| 21-Apr-2018 | Reuben Morgan-Williams | Ospreys | Wales | 02-Feb-1998 | 20(78) |
| 23-Feb-2018 |  Ciaran Frawley | Leinster | Ireland | 04-Dec-1997 | 20(81) |
SD = Scored date ,
DOB = Date of birth ,
A(D) = Age(days) .