Brad Rutter

Bradford Gates "Brad" Rutter (born January 31, 1978) is the highest winner on the American television game show "Jeopardy!", and the highest winner on a game show.
Rutter became a five-time champion on "Jeopardy!" in 2000. He later won four tournaments: the Tournament of Champions in 2001, the Million Dollar Masters tournament in 2002, the Jeopardy! Ultimate Tournament of Champions in 2005, and the Jeopardy! Battle of the Decades in 2014 His win in the Ultimate Tournament of Champions made him the highest winner on a game show. This was later beaten by Ken Jennings in 2007 when Jennings won $500,000 on "Are You Smarter Than a 5th Grader?". However, Rutter reclaimed the record after he won the Battle of the Decades tournament.
In February 2011, Rutter played against Jennings and an artificial intelligence computer called Watson. Rutter came in third place, losing to Watson. He won $200,000 for placing in third place. 
In January 2020, Rutter played against Jennings and James Holzhauer in Jeopardy! Greatest of All Time. The event was won by Jennings and Rutter finished in third place.
In addition to "Jeopardy!", Rutter also appeared on the game show "1 vs. 100" as part of the show's "mob." He played four times: on December 1, 2006, December 8, 2006, December 15, 2006, and February 9, 2007. In 2007, he appeared on the game show "Grand Slam". He lost to "Who Wants to Be a Millionaire" contestant Ogi Ogas in the second round. In 2011, he appeared as part of a six-person team on the game show "Million Dollar Mind Game". His team won $600,000.