On 13 June 1943, Real Madrid defeated Barcelona 11–1 in the second leg of the Copa del Generalísimo semi-finals, the Spanish Cup having been renamed in honor of General Francisco Franco.

The hostility of Madrid fans (and some strange decisions of the referee) at the start of the second leg (some players of Barcelona said they "feared for their lives") helped Real Madrid to an 8–0 lead at half time and 11–1 at the end of the match, thus advancing to the final 11–4 on aggregate, which they lost to Athletic Bilbao.

On route to the semi-finals, Barça had defeated the likes of RC Celta de Vigo and SD Ceuta.

Barcelona's striker Mariano Gonzalvo said of the incident, "Five minutes before the game had started, our penalty area was already full of coins."

In the 31st minute, Sabino Barinaga's scored Madrid's third goal of the night, which led to a dismissal for Barcelona's Benito García after he made what Calvet claimed was a "completely normal tackle".

[6] Both Pruden and Barinaga completed their hat-tricks in the first half, with the latter adding a fourth to his tally in the 87th minute, to give an unprecedented 11–0 lead to Madrid, however, Barcelona managed to salvage a small measure of dignity and honor with a consolation goal right at the end thanks to Mariano Martín.

[6] Juan Samaranch wrote: "In that atmosphere and with a referee who wanted to avoid any complications, it was humanly impossible to play...

[2] This match had a lasting impact on the football history of both Madrid and Catalonia, contributing to the birth of El Clásico.