Duel is an American gameshow hosted by Mike Greenberg that aired from December 17 to December 23, 2007 on ABC. The show aired as a week long six-episode championship at 8:00 PM from Monday through Friday with all the finale on Sunday. The program was explained by the website of the show ? And the World Series of Poker. The game has been played in a head to head format in which contestants replied general trivia questions, together with answers. The winner of this Duel jackpot of $1,720,000 has been Ashlee Register, whose expansive total was almost $1.8 million combined with previous winnings, which makes her first highest female game show money winner in the U.S. during the time. The second season aired at 9:00 PM from April 4 in a format together with rules.