The 2004 GFS Marketplace 400 was a Nextel Cup event held at Michigan International Speedway on August 22, 2004. Greg Biffle dominated the event, leading 82 laps in route to his first victory of the year, holding off Mark Martin by 8.2 seconds. The third straight week of issues for Jimmie Johnson (40th) gave Jeff Gordon his first points lead since the 2001 season, with Gordon atop Johnson by sixty-eight points. Stats