| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 30-Aug-2009 | Iker Muniain | Spain | 19-Dec-1992 | 16(254) |
| 20-Nov-2011 | Jonas Ramalho | Spain | 10-Jun-1993 | 18(163) |
| 11-Sep-2021 | Nico Serrano | Spain | 05-Mar-2003 | 18(191) |
| 09-Dec-2012 | Aymeric Laporte | France | 27-May-1994 | 18(197) |
| 28-Aug-2010 | Jon Aurtenetxe | Spain | 03-Jan-1992 | 18(238) |
| 28-Apr-2021 | Nico Williams | Spain | 12-Jul-2002 | 18(291) |
| 30-Aug-2014 | Unai Lopez | Spain | 30-Oct-1995 | 18(305) |
| 20-May-2018 | Dani Vivian | Spain | 05-Jul-1999 | 18(320) |
| 26-Aug-2007 | Javi Martinez | Spain | 02-Sep-1988 | 18(358) |
| 27-Aug-2012 | Inigo Ruiz de Galarreta | Spain | 05-Aug-1993 | 19(22) |
| 04-Dec-2016 | Asier Villalibre | Spain | 30-Sep-1997 | 19(65) |
| 16-Feb-2020 | Unai Vencedor | Spain | 15-Nov-2000 | 19(92) |
| 16-Aug-2019 | Oihan Sancet | Spain | 25-Apr-2000 | 19(112) |
| 14-Sep-2008 | Ander Iturraspe | Spain | 08-Mar-1989 | 19(190) |
| 02-Sep-2007 | Markel Susaeta | Spain | 14-Dec-1987 | 19(262) |
| 20-Aug-2018 | Peru Nolaskoain | Spain | 25-Oct-1998 | 19(299) |
| 16-Dec-2023 | Mikel Jauregizar | Spain | 13-Nov-2003 | 20(33) |
| 12-Aug-2023 | Unai Gomez | Spain | 25-May-2003 | 20(79) |
| 20-Sep-2009 | Isaac Aketxe | Spain | 03-Jun-1989 | 20(109) |
| 30-Aug-2009 | Oscar de Marcos | Spain | 14-Apr-1989 | 20(138) |
| 09-May-2009 | Eneko Boveda | Spain | 14-Dec-1988 | 20(146) |
| 20-Aug-2017 | Inigo Cordoba | Spain | 13-Mar-1997 | 20(160) |
| 08-Nov-2009 | Mikel San Jose | Spain | 30-May-1989 | 20(162) |
| 09-Nov-2013 | Guillermo Fernandez | Spain | 23-May-1993 | 20(170) |
| 06-Dec-2014 | Inaki Williams | Ghana | 15-Jun-1994 | 20(174) |
| 14-Sep-2008 | Mikel Balenziaga | Spain | 29-Feb-1988 | 20(198) |
| 20-Aug-2017 | Unai Nunez | Spain | 30-Jan-1997 | 20(202) |
| 16-Aug-2021 | Julen Agirrezabala | Spain | 26-Dec-2000 | 20(233) |
| 03-May-2009 | Adrien Goni | Spain | 25-Aug-1988 | 20(251) |
| 02-Nov-2014 | Ager Aketxe | Spain | 30-Dec-1993 | 20(307) |
| 15-Aug-2022 | Adu Ares | Spain | 12-Oct-2001 | 20(307) |
| 18-May-2008 | Urko Arroyo | Spain | 14-May-1987 | 21(5) |
MD = Match date,
DOB = Date Of Birth,
A(D) = Age(Days).