Roger Alan Craig (born c. 1977) is an American game show contestant and computer scientist. He held the record for highest single-day winnings on the quiz show Jeopardy! from September 14, 2010 (surpassing Ken Jennings) to April 9, 2019 (when James Holzhauer surpassed him). In 2011, Craig returned to win the Jeopardy! Tournament of Champions. In 2014, he competed in the Battle of the Decades tournament, finishing third overall behind Brad Rutter and Ken Jennings.