Henry Callahan
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Henry Callahan (1957–1982) was a player and ambassador of Ultimate and helped bring the sport to the University of Oregon, formally establishing a team in 1978. In 1982 he was murdered during a robbery while working in Boulder, Colorado. Both the Callahan Award, given each year to the best male and female college Ultimate players, and the Callahan Rules of Ultimate are named after him. A Callahan is also the act of catching a disc on an interception in the opponent's endzone by a defensive player for a point.