Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2000 |  | Iker Garai | DF |  | Amurrio Club | Amurrio Club |
| 01/2000 | | Urraka | MF |  | Athletic Club B | Bilbao B |
| 01/2000 | | Nacho García | FW |  | Sporting Gijón | Sporting Gijón |
| 07/1999 | | Aulestia | GK |  | SD Eibar B | SD Eibar B |
| 07/1999 | | Descarga | DF |  | CA Osasuna | Osasuna |
| 07/1999 | | Gorka García | DF | | Amurrio Club | Amurrio Club |
| 07/1999 | | Gorka González | DF |  | SD Gernika | Gernika |
| 07/1999 | | Josetxo | DF | | CA Osasuna | Osasuna |
| 07/1999 | | Uribarri | DF |  | CD Numancia | Numancia |
| 07/1999 | | Arrieta | MF |  | SD Beasain | SD Beasain |
| 07/1999 | | Gorka Soría | MF |  | Burgos CF | Burgos CF |
| 07/1999 | | Irazoki | MF |  | Real Unión | Real Unión |
| 07/1999 | | Léniz | MF |  | Club Bermeo | Club Bermeo |
| 07/1999 | | Bermejo | FW |  | Cultural Leonesa | CD Leonesa |
| 07/1999 | | Iñaki Cenzano | FW | | Cultural Leonesa | CD Leonesa |
| 07/1999 | | Morales | FW | | CA Osasuna | Osasuna |
| 07/1999 | | Ibon Muguruza | FW | |||
| 07/1999 | | Rubén Suárez | FW |  | Real Oviedo B | Real Oviedo B |
| 07/1999 | | Suances | FW |  | CD Ourense | CD Ourense |
| 07/1999 | | Ziarreta | MA |  | CD Badajoz | CD Badajoz |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2000 | | Iñaki Cenzano | FW |  | CF Talavera | Talavera |
| 01/2000 | | Rubén Suárez | FW |  | Real Oviedo | Oviedo |
| 01/2000 | | Garmendia | DF | | SD Beasain | SD Beasain |
| 01/2000 | | Gorka González | DF | | Amurrio Club | Amurrio Club |
| 01/2000 | | Arrieta | MF | | Real Unión | Real Unión |
| 01/2000 | | Donosti | MF |  | Barakaldo CF | Barakaldo CF |
| 07/1999 | | Raúl Iglesias | GK |  | Mérida AD | Mérida AD |
| 07/1999 | | Aitor Ocio | DF |  | Albacete | Albacete |
| 07/1999 | | Bastida | DF |  | Gimnástica Torrelavega | Gim.Torrelavega |
| 07/1999 | | Gurrutxaga | DF | | Barakaldo CF | Barakaldo CF |
| 07/1999 | | Sarriegui | DF |  | Real Sociedad | Real Sociedad |
| 07/1999 | | Velázquez | DF | | Real Unión | Real Unión |
| 07/1999 | | Gaizka Garitano | MF | | CD Ourense | CD Ourense |
| 07/1999 | | Golo | MF | | CD Badajoz | CD Badajoz |
| 07/1999 | | Kortina | MF |  | Real Murcia | Murcia |
| 07/1999 | | Arenaza | FW |  | CD Logroñés | CD Logroñés |
| 07/1999 | | Cuéllar | FW |  | Hércules CF | Hércules |
| 07/1999 | | Quico Rey | FW | | CD Logroñés | CD Logroñés |
| 07/1999 | | Sukia | FW | | SD Beasain | SD Beasain |