Tensions were already high between the Hungarian and Soviet water polo teams, as the Soviets had taken advantage of their political control of Hungary to study and copy the training methods and tactics of the Olympic champion Hungarians. Then, on 23 October 1956, a demonstration by students of the Budapest University of Technology and Economics escalated into an uprising against the government in Budapest. On 1 November, Soviet tanks began rolling into Hungary and from 4 to 10 November forces began suppressing the uprising with air strikes, artillery bombardments, and tank-infantry actions. At the time, the Hungarian water polo team was in a mountain training camp above Budapest. They were able to hear the gunfire and see smoke rising. The players were the defending Olympic champions; with the Summer Olympics in Melbournetwo months away, they were moved into Czechoslovakia to avoid being caught in the revolution. The players only learned of the true extent of the uprising and the subsequent crackdown after arriving in Australia and they were all anxious for news of friends and family. By the start of the Olympics, the uprising had been suppressed and many players saw the Olympics as a way to salvage pride for their country. "We felt we were playing not just for ourselves but for our whole country", said Zádor after the match. The match was played in front of a partisan crowd bolstered with expatriate Hungarians as well as Australians and Americans, two of the Soviet Union's Cold War opponents.
The match
In the morning before the start, the Hungarians had created a strategy to taunt the Russians, whose language they had studied in school. In the words of Ervin Zádor: "We had decided to try and make the Russians angry to distract them." From the beginning, kicks and punches were exchanged. At one point, a punch thrown by Hungarian captain Dezső Gyarmati was caught on film. Meanwhile, Zádor scored two goals to the crowd's cheers of Hajrá Magyarok!. With one minute remaining in the match, Hungary was leading 4–0. Zádor was marking Valentin Prokopov, with whom he had already exchanged words, and a whistle was blown. In the intermission, Prokopov struck him, causing a bleeding gash. Zádor left the pool; his bleeding was the final straw for a crowd already in frenzy. Many angry spectators jumped onto the concourse beside the water, shook their fists, shouted abuse and spat at the Russians. To avoid a riot, police entered the arena and shepherded the crowd away. Pictures of Zádor's injuries were published around the world, leading to the "Blood in the Water" moniker. Reports that the water in the pool turned red were, however, an exaggeration. Zádor said his only thought was whether he would be able to play the next match. The referees stopped the match; Hungary was declared the winner since they had been leading. Hungary then beat Yugoslavia 2–1 in the final to win their fourth Olympic gold medal. Zádor's injury forced him to miss the match. After the event was completed, he and some of his teammates defected to the West.
In film
In 2006, for the 50th anniversary of the attempted Hungarian Revolution, the documentary Freedom's Fury, produced by Kristine Lacey and Thor Halvorssen, told the story of the match. Quentin Tarantino described it as "the best untold story ever". The documentary was narrated by the Olympic swimmer Mark Spitz, who, as a teenager had been coached by Ervin Zádor. Also in 2006, a feature film about the match was released, entitled Children of Glory. The movie shows the Hungarian Revolution through the eyes of a player on the water polo team and a young woman who is one of the student leaders. It was directed by Krisztina Goda, and produced by Andrew G. Vajna. The movie appeared in Hungarian cinemas on 23 October 2006, the 50th anniversary of the revolution. On 29 October 2006, it was shown at the White House for President George W. Bush and guests. The incident also features in the 1978 Australian filmNewsfront.