Duel is an American game show that first aired from Monday, December 17, 2007 to Sunday, December 23, 2007 on the ABC network. The show aired as a week-long six-episode special at 8:00 p.m. Eastern and Pacific time, from Monday through Friday with the finale on Sunday. It was hosted by Mike Greenberg, and featured two models, Olivia Fox and Jennifer Aguero, as "chip girls."The show's website describes the program as a cross between Who Wants to Be a Millionaire and the World Series of Poker. The game is played in a head-to-head format in which contestants answer general trivia questions, with wrong answers contributing to a growing jackpot. The winner of the Duel jackpot of $1,720,000 was Ashlee Register, bringing her grand total to $1,795,000, and making her the highest female game show money winner in the US.Duel was created by the Francophone production house FrenchTV. BermanBraun is the U.S. production firm. It is headed by Lloyd Braun and Gail Berman, both former network executives. The primary sponsor of Duel is Diet Pepsi Max.