IROC XXIX was the 29th season of the Crown Royal International Race of Champions, which began on Friday February 12, 2005 at Daytona International Speedway. The all-star roster included twelve drivers from eight premier racing series. Mark Martin dominated the season, winning two races and finishing well ahead in the points standings, earning him a record-setting fifth IROC title. As with IROC XXVIII, the drivers used their car colors and numbers from their native series (when feasible).