Formed in 1940, following the merger of Albacete F.C. and C.D. Albacetense, Albacete Foot-ball Association as they were originally called, used to play Campo del Parque de Los Mártires. This was a very basic enclosure just to the south of the city and featured two strips of wodden bleachers on either side of the pitch and not a lot else. Following the ban on using non-Spanish titles in club names, Albacete adopted the title of Balompié in 1941 and started to make progress in the regional leagues. The club reached the Tercera in 1943 and won the title on three occasions before finally gaining promotion to La Segunda for the start of the 1949-50 season. Albacete achieved a very respectable seventh place finish in that first season, losing just once at the Campo del Parque and scoring a hat-full of goals, including a 10-0 victory over Salamanca. The cost of competing in La Segunda proved too great however and with a weaker squad, Albacete finished the 50/51 season in fifteenth position and was relegated.