Jeopardy! Tournament of Champions

The Jeopardy! Tournament of Champions is an annual tournament featuring the longest-running champions and biggest money winners from the past season or seasons of Jeopardy! The tournament began in 1964 during Art Fleming's tenure as host, and has continued into the Alex Trebek era of the show. There have been six years in which the Tournament was skipped altogether (1984, 1997, 2005, 2008, 2012, and 2016), and seven seasons (1, 17, 20, 23, 27, 30, and 33). The brief 1978–79 revival, which aired for five months, is known to have had a Tournament as well.

In 2002, Jeopardy! held a Million Dollar Masters tournament featuring fifteen previous champions, and in 2005 the show held an Ultimate Tournament of Champions for over three months, which featured over 100 champions from previous years instead of a regular Tournament of Champions for just the previous year; that season's Tournament of Champions began on September 20, 2004, featuring any remaining Season 19 champions who hadn't qualified for that year's tournament as well as all of the Season 20 qualifiers except for Ken Jennings, who had just resumed his winning streak two weeks before the tournament started (Jennings's streak was interrupted three times that year; the other two times were for the show's annual Kids' Week in October 2004 and the College Championship in November 2004).

The Season 25 Tournament of Champions was taped during the 2009 Consumer Electronics Show in Las Vegas, Nevada.

In 2014, Jeopardy! held a Battle of the Decades tournament featuring 45 previous champions, with 15 from their respective decade (1984–93, 1994–2003, and 2004–13). All of the players competed in a week-long slate of games, respective of decade, from which the winners out of each game would become quarter-finalists. Those 15 winners would then return to compete in a regular tournament format, with the winner taking home $1,000,000.

According to surviving microfilm records of broadcasts from the era, the original 1964-1975 Tournament of Champions format generally featured the top 9 winners in the given season, inviting the highest earning five-day champions, with four-day and three-day champions invited if necessary in order of winnings.

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