2009–10 Segunda División

The 2009–10 Segunda División season (known as the Liga Adelante for sponsorship reasons) was the 79th since its establishment. The first matches of the season were played on 29 August 2009, and the season ended on 19 June 2010. Real Betis, Numancia and Recreativo de Huelva are the teams which were relegated from La Liga the previous season. The teams which were promoted from Segunda División B were: Cádiz (champion), Cartagena (runner-up), Real Unión (play-off winner) and Villarreal B (play-off winner).

2009–10 Segunda División

The 2009–10 Segunda División season (known as the Liga Adelante for sponsorship reasons) was the 79th since its establishment. The first matches of the season were played on 29 August 2009, and the season ended on 19 June 2010. Real Betis, Numancia and Recreativo de Huelva are the teams which were relegated from La Liga the previous season. The teams which were promoted from Segunda División B were: Cádiz (champion), Cartagena (runner-up), Real Unión (play-off winner) and Villarreal B (play-off winner).