Motocross is a cycle racing sport involving racing specialized high performance off-road motorcycles on an artificially made dirt track consisting of steep jumps and obstacles. The Motocross events also involve competition in Supercross. Professional Supercross contest races are held almost exclusively within professional baseball and football stadiums. Supercross was derived from the sport of Motocross. While Motocross and Supercross are similar in many respects, there are significant differences as well. For example, the Supercross races are heavily advertised and televised motorsports events held within major cities.