The club was founded on September 17, 1923, by a group of local citizens. Originally named Tecún Umán, the club was soon renamed in honor of Luis Ángel Firpo, a famous Argentine boxer, who almost became the first Latin American to fight for the heavyweight championship, knocking Jack Dempsey out of the ring on September 24, 1923.[4] Some of the most prominent players from El Salvador, including Mauricio Cienfuegos and Raúl Díaz Arce, have played for L.A. Firpo. The team has won a total of ten Primera División de Fútbol Profesional championships, the first coming in 1988–89 and the most recent in the 2013 Clausura.