In the following years, Araquistáin was more often than not in the losing end of a battle for first-choice duties with José Vicente Train and Antonio Betancort. His best output came in the 1963–64 campaign, when he featured in 14 out of 30 league contests to help the "Merengues" to a third national championship in a row; on 11 May 1966, he appeared in one of his 18 European Cup matches, helping his team win that year's continental competition with a 2–1 triumph over FK Partizan.