A few months after its foundation, in August 1902, Moncloa was invited to take part in the festivities at El Escorial, and part of the program featured a match between them and Madrid FC, which was held on 11 August, and the clash ended in a dramatic 6–5 score to Madrid, who thus won its second ever piece of silverware (two ceramic plates) in its history, having already won the Copa de la Gran Peña, the consolation trophy of the 1902 Copa de la Coronación.

[2] In December 1902, Moncloa FC participated, together with the rest of the Madrid clubs at the time, in the Concurso de Bandas, which was the forerunner of the aforementioned Centro Championship, which began in next year in 1903.

In it, Moncloa wanted to take revenge on Madrid FC after losing the first trophy at El Escorial, but they failed to do so as the match ended with a resounding 0–8 victory to Madrid, who came out winners of the tournament after comfortably beating the remaining opponents.

[3] In March 1903, a meeting held in Mancloa established the club's board of directors as follows: President, Francisco Borbón; Vice President, Joaquín García Borés; Treasurer, Alonso Colmenares; Secretary, Jesús González; Members: Salvador Navarro, Francisco Arechavala, Juan Danis, Julián Vals and Ezequiel Romero; Head of material, Lorenzo Carrasco.

[a] The club's progress, however, was not as stable as expected, but the team was reinforced in the summer of 1903 thanks to the arrival of several dissent players of Madrid FC.