Mayfield returned to victory lane at the Chevy Rock and Roll 400 to move his team into the ninth spot in the inaugural Chase for the Cup, and finished tenth in points. For a while, winning a race to get into the Chase was referred by the moniker "pulling a Jeremy Mayfield." In 2005, he won the GFS Marketplace 400, and finished ninth in the standings. In August 2006 he was released from Evernham (see below). Evernham used Bill Elliott and then Elliott Sadler for the remainder of the season. Mayfield signed a contract with Bill Davis Racing for 2007, driving the No. 36 Toyota Camry. He ran a total of 13 races for Bill Davis Racing in 32 attempts with a best finish of 22nd at Kansas Speedway. In August 2007, it was announced that Mayfield and Davis would part ways at the end of the season. Later in the season, he would take over driving the No. 66 car for Haas CNC Racing (then wholly owned by Gene Haas, no relation to Carl Haas, above) starting with Atlanta 2007. Late in 2007, he and teammate Scott Riggs would switch rides putting Mayfield in the No. 70 car (later to become the Stewart-Haas No. 14 car) at the beginning the 2008 season. Mayfield completed seven races in the No. 70 with a best finish of sixteenth before he was released from the team. After July 9, 2008, Tony Stewart was able to announce his purchase into the Haas CNC team and the lineup of drivers to replace Riggs and Mayfield. Mayfield would complete one additional race at Dover in the No. 40 Dodge, filling in for the injured Dario Franchitti. He would start tenth and finish twenty-fifth. After failing to get a ride for the 2009 season, on January 19, 2009, Mayfield and his wife announced that he started his own team, Mayfield Motorsports. Mayfield would attempt the full season in a self-owned Toyota, using the number 41 (the number and owner points was purchased from Chip Ganassi Racing) and borrowing the Evernham-style of numbering. He raced his way into the Daytona 500 successfully. After ten races in the 2009 season, Mayfield qualified for just five. He was then embroiled in a substance abuse dispute that, for all intents and purposes, ended his NASCAR career. By July 2009, Mayfield had sold his race team and operations due to lack