[3][4] Belauste won three caps for Spain, representing the nation at the 1920 Summer Olympics in Belgium and helping it win silver, as captain.

[5] This was subsequently viewed as the reason why the national team was dubbed Furia Roja (Spanish Fury).

[8] Belauste was also active in politics, being affiliated to the Basque Nationalist Party and responsible for its sports section.

"; additionally, he almost did not receive his Olympic medal, due to the fact he refused to carry the Spanish flag in the parade.

After his voluntary exile, first to France, then Algeria, Argentina and Brazil, Belauste returned home, but left for Mexico after the start of the Spanish Civil War.