The circuit is open to Formula 1 and Huskies. The races take place in different classes and are contested in a joint start. The tracks are always asphalt. In Estonia, circuit racing takes place on the best track in the Nordic countries, the Audruring in Pärnu.
The competition will take place in specially designed cars with a safety barrier as an essential part. In the event of an accident, it protects drivers from injury. In addition, competitors are required to wear racing clothing and helmets that comply with international regulations.
The circuit consists of practice races, qualification and finals. All races will be run over a set number of laps (sometimes for a set time, e.g. 10 minutes). In the finals, the competitors who have done better in the qualifying heats will start first. The heats will be held separately for the different classes of machines and the winners will be the first to be shown the chequered flag.