 On lap 79 , Biffle passed Reutimann for third . Seven laps later , Stewart claimed the lead from Kenseth . During the 97th lap , debris was spotted on the track , prompting the first caution of the race . During the caution , all of the drivers on the lead lap made pit stops . Kenseth reclaimed the lead and maintained it at the restart . On the 109th lap , Kyle Busch 's car suffered a cut left front tire from contact with John Andretti , forcing Kyle Busch to come to pit road . Seven laps later , Biffle passed Kenseth for the lead , while Jeff Gordon passed Reuitmann for fourth thirteen laps later . By the 135th lap , Biffle had built a lead over Kenseth to three seconds . 
