The –SegundaDivisió2012–13 Segunda División season (known as the Liga Adelante for sponsorship reasons) was the 82nd since its establishment. The season started on 17 August 2012 and the league phase of 42 rounds ended on 9 June 2013. The entire season ended on 22 June 2013 with the promotion play-off finals.
Teams
A total of 22 teams contested the league, including 15 sides from the 2011–12 season, four promoted from the 2011–12 Segunda División B and three relegated from 2011–12 La Liga.
Villarreal CF, Sporting de Gijón and Racing de Santander were the teams which were relegated from La Liga the previous season. Villarreal was relegated after 12 years in La Liga, Sporting de Gijón returned to the Segunda División after a four-year tenure in La Liga, while Racing de Santander ended ten consecutive seasons in La Liga, the longest period in its history. Deportivo de La Coruña was promoted the previous season and made their immediate return to the top level, Celta de Vigo after five years in the Segunda División, and the other team promoted to La Liga as play-off winner was Valladolid after two years of absence.
The teams relegated the previous season were Villarreal B, Gimnàstic de Tarragona, Alcoyano and Cartagena. These four were replaced by four Segunda División B teams: Real Madrid Castilla (group 1 champions and 2ªB champions), Mirandés (group 2 champions and 2ªB runners-up) and the winners of third round play-offs Ponferradina and Lugo. Ponferradina made an immediate return to the second level, while Real Madrid Castilla and Lugo returned to it respectively after 5 and 19 years. Finally, Mirandés made their debut in the second level.
Villarreal B did not finish in the relegation places, but Villareal were relegated from Liga BBVA, and the rule of Spain is that two teams of the same owner cannot play in the same league, forcing Villarreal B's relegation.
Stadia and locations
Personnel and sponsorship
Managerial changes
League table
Positions by round
Results
Promotion play-offs
This promotion phase (known as Promoción de ascenso) was to determine the third team which was promoted to 2013–14 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 12 June, the best positioned team was played at home the second leg on 16 June. The final was also two-legged, with the first leg on 19 June and the second leg on 23 June, with the best positioned team also playing at home the second leg. Girona and Almería played the final phase, where Almería was winner and promoted to La Liga after a two-year absence. Alcorcón and Las Palmas were eliminated in semi-finals.
Play-Offs
Semifinals
First leg
Second leg
Final
Awards and season statistics
Top scorers
Zamora Trophy
The Zamora Trophy is awarded by newspaper Marca
to the goalkeeper with least goals-to-games ratio.
Fair Play award
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.