The 2004 Evolution Championship Series (commonly referred to as Evo 2004 or EVO 2004) was a fighting game event held at the California State Polytechnic University, Pomona in Pomona, California from July 29 to August 1. The event featured nine fighting games on the main lineup, including Street Fighter III: 3rd Strike and Marvel vs. Capcom 2. While in previous Evolution events all competitions were held on arcade machines, most tournaments at Evo 2004 were played on video game consoles with the exception of Street Fighter III.
Evo 2004 featured the first Street Fighter match between Daigo Umehara and Justin Wong, in which Umehara executed the "Daigo Parry". The controversial final match of the Soulcalibur II tournaments held at Evo 2004 motivated the implementation of a collusion rule still in use today.
Background
The sixth Evolution Championship Series was held at the California State Polytechnic University, Pomona, Southern California on July 29 to August 1. Evo 2004 featured approximately 700 participants from over 30 nations, each competing in one or more of the nine tournaments held at the event. In order to create an easier situation for staff and increase the average play time of participants, the double-elimination-style tournaments of previous Evo events was replaced with a round-robin/double-elimination pool system. In the old system, some players would find themselves being eliminated from a tournament after losing two games, but because of the newly implemented system each participant would face off against at least nine other players during the preliminary pool.