The 2010–11 Segunda División season (known as the Liga Adelante for sponsorship reasons) was the 80th since its establishment. The first matches of the season were played on 27 August 2010, the regular league ended on 4 June 2011, and the season ended with the promotion play-off finals on 18 June 2011.
Real Valladolid, CD Tenerife and Xerez CD are the teams which were relegated from La Liga the previous season. Tenerife and Xerez made their immediate return to the second level after just one season in the top division, while Valladolid ended a three-year tenure in La Liga. Real Sociedad was promoted after three consecutive seasons in the second level, Levante UD was promoted after two seasons and Hércules CF after 14 seasons, its longest absence from first division.
Source: LFP - Liga Adelante
Rules for classification: 1st points; 2nd head-to-head points; 3rd head-to-head goal difference; 4th head-to-head goals scored; 5th goal difference; 6th number of goals scored; 7th Fair-play points. 1Barcelona B could not participate in the play-offs as they are Barcelona's reserve team, so the seventh positioned team qualified for the play-offs. (C) = Champion; (R) = Relegated; (P) = Promoted; (E) = Eliminated; (O) = Play-off winner; (A) = Advances to a further round.
Only applicable when the season is not finished: (Q) = Qualified to the phase of tournament indicated; (TQ) = Qualified to tournament, but not yet to the particular phase indicated; (RQ) = Qualified to the relegation tournament indicated; (DQ) = Disqualified from tournament.
This season a new promotion phase (known as Promoción de ascenso) was introduced to determine the third team which promoted to 2011–12 La Liga. Teams placed between 3rd and 6th position (excluding reserve teams) took part in the promotion play-offs. Fifth placed faced against the fourth, while the sixth positioned team faced against the third. The first leg of the semi-finals was played on 8–9 June 2011 with the best positioned team playing at home on the second leg which was played on 11–12 June 2011. The final was also two-legged, with the first leg on 15 June 2011 and the second leg on 18 June 2011 with the best positioned team also playing at home on the second leg.Elche CF and Granada CF played the final phase where Granada CF promoted to La Liga for the first time in 35 years, having spent 26 of them in Segunda División B and Tercera División. Celta de Vigo and Real Valladolid were eliminated in semifinals. Barcelona B could not participate in the play-offs as they are Barcelona's reserve team.
This award is given annually since 1999 to the team with the best fair play during the season. This ranking takes into account aspects such as cards, suspension of matches, audience behaviour and other penalties. This section not only aims to know this aspect, but also serves to break the tie in teams that are tied in all the other rules: points, head-to-head, goal difference and goals scored.