The fourth season of the National Heads-Up Poker Championship was filmed in 2008 at Caesars Palace in Las Vegas, Nevada. Some of poker's brightest stars, including defending champion Paul Wasicka and runner-up Chad Brown, as well as Daniel Negreanu, Antonio Esfandiari, Phil Ivey, Chris Moneymaker, Michael Mizrachi, Jamie Gold, Doyle Brunson, Shannon Elizabeth, Greg Raymer, David "Chip" Reese, Hollywood actor Don Cheadle, and Seinfeld's Jason Alexander, all competed to win the $500,000 first-place prize.