Extremadura Unión Deportiva "B" is the reserve team of Extremadura UD, a Spanish football club based in Almendralejo, in the autonomous community of Extremadura. Founded in 1986 as Atlético San José Promesas it plays in Tercera División - Group 14, holding home games at Estadio Tomás de la Hera, with a 2,000-seat capacity.
Founded in 1986, San José Promesas only started to have a senior team in 2004. On 21 June 2016, the club was integrated into the structure of Extremadura UD and became its reserve team.[1] With the aim to respect its history, the club would be named also as Extremadura-San José and will continue wearing its classic mauve kit. In the following season, the reserve team was renamed to Extremadura B.
Season to season
- As Club Atlético San José Promesas