Tony Stewart, driving the #20 Chevrolet Monte Carlo SS for Joe Gibbs Racing, won the first Gatorade Duel race, while Jeff Gordon drove the #24 Hendrick Motorsports Chevrolet to the checkered flag in the second race. However, widespread rules infractions that affected five teams – the #17 Roush Fenway Racing Ford Fusion team of Matt Kenseth, the three Evernham Motorsports Dodge Charger teams of Kasey Kahne (#9), Scott Riggs (#10) and Elliott Sadler (#19 car) – were discovered during the Pole Qualifying on February 11. But, a sixth team – the #55 Toyota Camry from Michael Waltrip Racing driven by the teams' owner – suffered the most severe punishment handed out by the motorsports sanctioning body since 2000, as it was docked 100 driver and owner points, causing it to leave Daytona with negative owner and championship points (−27 points). In addition, Gordon was penalized with the loss of his starting position after the #24 Chevrolet failed a post-race inspection because of an improper spoiler height. His starting position was changed from fourth to 42nd. There were no other penalties assessed against himself or the team and he remained listed as the winner of the second duel race.