[3] He was one of the most important figures of Spain's football at the beginning and middle of the 20th century, as a player, captain, club founder, manager, referee, director, vice-president and even as a national coach.

No one disputed this decision in a time when the captain had the duty of dictating the tactics to be followed and making up the line-ups as there were still no professional coaches in Spain's football, thus basically serving as a player-coach.

[6] Berraondo played an important role in the first great team in the history of Real Madrid since he was able to pass on to his teammates the knowledge that he had acquired in England about football.

Berraondo played for Real Sociedad for four years, between 1909 and 1913, a period in which he also served as captain and player-coach, using the knowledge he brought from England to strengthen the newly founded team.

To secure a spot, however, Vasconia had first to defeat Racing Club de Irún in a playoff to determine the local representative in the tournament, and Berraondo played in both matches, which ended in wins.

[8][9] The tournament was played in a triangle format against the only two other teams who had won the competition, Madrid FC and Athletic Club, the powerhouses of Spain's football at the time, but under Berraondo's leadership, they managed to beat his former club Madrid by a score of 2–0 (both goals being scored by George McGuinness), but in the final they were beaten by Athletic 0–1, the courtesy of a goal from Remigio Iza.

[11] On 5 October 1913, Berraondo participated in another historic eleven of Real Sociedad, the one that opened the Atotxa Stadium against Athletic Club, in an eventual 3–3 draw.

[4] His departure in 1909 to live in San Sebastián forced him to resign from these functions and he was subsequently relieved of the vice-presidency of the club, a position that he carried out with great honor.

Also in 1909, he participated in the foundation of Real Sociedad, of which he was a member of the first board of directors, also holding the position of vice president for a few years, while also serving as player and captain of the team.

[citation needed] Berraondo was still an active player when he refereed his first match, a preliminary round in the 1911 Copa del Rey between Bilbao FC and Academia de Artillería.

[20] A year later, a Selection Committee that was to be in charge of Spain's team was formed, a triumvirate made up of Berraondo himself, Ruete and the Galician Manuel Castro (who had been the driving force behind the founding of Celta de Vigo), and the first match this Committee oversaw was a friendly against Belgium 9 October 1921, which was Spain's first-ever game after the Olympics as well as their first-ever game on home soil.

[citation needed] In July 1927, he was appointed once again as the national coach, and this time Berraondo decided to accept, to start the preparations for the upcoming 1928 Summer Olympics.

[4] This fact led to the absence of the main figures of Spain's football at the time, such as the goalkeeper Ricardo Zamora, José Samitier or Vicente Piera.

[24][4] It was a new failure of Spain in the Olympics and the criticism of Berraondo fell mercilessly, especially for his decision to field the Arenas goalkeeper José María Jáuregui instead of Ricardo "Divino" Zamora, whom many called inexperienced and blamed for much of the defeat.