17 October 1976,
With the ikurrina in their hands came to the court the basketball teams Baskonia and Askatuak in the Mendizorroza of Vitoria. The ikurrina was the first time it was shown publicly in an official basketball competition and had a great impact, because it was not yet legal in Hego Euskal Herria.
This was weeks before Atotxa's derbi between Real and Athletic. In the same direction, in September the trainera Sotera de Santurtzi also displayed ikurriña in the GP Nervión race.