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Final Four is a sports term that is commonly applied to the last four teams remaining in a playoff tournament. The term usually refers to the four teams who compete in the two games of a single-elimination tournament's semi-final (penultimate) round. Of these teams, the two who win in the semi-final round play another single-elimination game whose winner is the tournament champion. In some tournaments, the two teams that lose in the semi-final round compete for third place in a consolation game a tournament format where four teams play two rounds of single-elimination games, resulting in a single champion.
The term "final four" is most often used in the United States and in sports heavily influenced by that country; elsewhere, only the term "semi-finals" is in common use. "Final four" first appeared in print in a 1975 article for the Official Collegiate Basketball Guide, whose author Ed Chay was a sportswriter for the Cleveland Plain Dealer. Chaye stated that the Marquette basketball squadron "was one of the final four" during the previous season's tournament. The NCAA began to use the term and later trademarked it.
The oldest and most common use of the term is in reference to the final four teams in the annual NCAA Men's Division I Basketball Championship. Each Final Four team is the regional champion from the East, South, Midwest or West regions of the tournament. (Other region names have been used, such as "Mideast" replacing South, or "Southeast" and "Southwest" replacing South and Midwest.) The teams travel from the four separate sites of their regional rounds to a common venue for the Final Four. In the men's basketball tournament, a team must win either four or five consecutive rounds (games) to qualify for the Final Four. The four teams are matched against each other on the last Saturday of the tournament. The two winners emerge to play in the national championship game the next Monday evening.
The NCAA also uses "Final Four" for other sports besides basketball, such as the Men's and Women's Volleyball Championship. For ice hockey tournaments, the NCAA uses a variation of the term: the "Frozen Four".
Because the term is now a registered trademark of the NCAA in the U.S., no other organizations in that country can use the phrase to refer to their tournaments. Organizations in other countries may officially do so. Many basketball organizations outside the U.S. use the term for the semifinal and final rounds of their tournaments—such as Euroleague Basketball (company) for the Euroleague and Eurocup, the Israeli Basketball Super League, and the University Athletic Association of the Philippines. The CEV Champions League in volleyball also uses "Final Four" for its final rounds.
Non-sports use 
See also 
- NCAA Men's Division I Final Four appearances by school
- List of the NCAA Division I men's basketball tournament Final Four participants
- "Why Is It Called "March Madness"?". Slate.com. 2004-03-18. Retrieved 2011-03-15.
- Irene Klotz (2011-07-21). "NASA's 'Final Four' astronauts close out shuttle era". Reuters.
- Seth Borenstein (2011-07-22). "Crowd to NASA's 'Final Four' astronauts: Welcome Home". Associated Press via MSNBC.
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