The Chicago Motor Speedway at Sportsman's Park was a motorsports race track, located in Cicero, Illinois, just outside Chicago. It was built in 1999 by a group including Chip Ganassi, owner of Chip Ganassi Racing. In 2002 the 1.029-mile (1.656 km) oval shaped track suspended operations due to financial conditions in the motorsports industry. The track was also the site of horse races, for which the track was called "Sportsman's Park". The track was one of three racetracks that hosted both NASCAR auto races and horse races.

Cicero is a town in Cook County, Illinois, United States, and a suburb of Chicago. As of the 2020 census, the population was 85,268, making it the 11th-most populous municipality in Illinois. The town is named after Marcus Tullius Cicero, a Roman statesman and orator.