Speedway Motorsports, Inc. is a leading promoter, marketer and sponsor of motorsports activities in the United States. The Company owns and operates Atlanta Motor Speedway, Bristol Motor Speedway, Charlotte Motor Speedway, Infineon Raceway, Kentucky Speedway, Las Vegas Motor Speedway, New Hampshire Motor Speedway and Texas Motor Speedway.

The company also provides souvenir merchandising services through its SMI Properties subsidiary; provides radio programming, production and distribution through its Performance Racing Network subsidiary; develops electronic and media promotional programming and distributes wholesale and retail racing apparel through The Source International subsidiary; and manufactures and distributes smaller-scale, modified racing cars and parts through its 600 Racing subsidiary. It also co-owns Motorsports Authentics, a joint venture with International Speedway Corporation, which produces, markets and sells licensed motorsports merchandise.