Tags: Motorsport Season.
The twenty-third season of IROC the (International Race Of Champions) started on February 12 1999. IROC XXIII was the year that witnessed the closest race and points battle ever. It was held at Michigan International Speedway in which Dale Earnhardt beat his son Dale Earnhardt Jr. The other three contested races were held at Daytona International Speedway Talladega Superspeedway and Indianapolis Motor Speedway. Earnhardt won the first three races of the season.
