AD Alcorcón

Founded in 1971 by Dionisio Muñoz Jerez. The founding act of the club was signed on 20 July that year. Alcorcón spent roughly its first 30 years of existence in between the fourth division and the regional leagues. Alcorcón played its first match on 8 September 1971 against Atlético Madrid (youth team) and lost it 0:2. In 2000–01, it made its Segunda División B debut, finishing in 12th place, and spending the following seasons immersed in mid-table positions. In the 2003–04 season, led by coach Raúl González, Alcorcón finished in 10th position in Segunda División B. In 2008–09, a third place in the regular season meant Alcorcón was allowed to appear in the promotion play-offs for the first time in its history. After disposing of Sant Andreu and Alcoyano, the club was ousted by Real Unión of Irun in the final round with a 3–1 aggregate scoreline.

2009–10 Copa del Rey

On 27 October 2009, Alcorcón secured the most famous victory in its history after it defeated La Liga powerhouse Real Madrid 4–0 at home in the first leg of its round-of-32 match in the Copa del Rey. In the club's first ever official match against a team from the top flight, its opponent fielded nine international players in its starting eleven: Jerzy Dudek, Álvaro Arbeloa, Raúl Albiol, Christoph Metzelder, Royston Drenthe, Mahamadou Diarra, Guti, Esteban Granero, Raúl, Rafael van der Vaart and Karim Benzema, with Ruud van Nistelrooy, Fernando Gago and Marcelo appearing as substitutes in the…