What is a race track designed for kart racing called?

A race track designed for kart racing is called a kart circuit. It is a purpose-built or temporary course laid out for go-karts and, in some cases, other small vehicles such as pocket bikes or radio-controlled models.

Kart circuits are generally shorter and narrower than full-size automobile race tracks, with frequent corners, hairpins, chicanes and short straights. Sprint circuits often resemble miniature road courses, allowing drivers to race in both directions through left- and right-hand turns. Some facilities are indoors, while others use outdoor asphalt layouts or temporary street and parking-lot courses.

The term circuit reflects the lap-based nature of the venue: competitors repeatedly complete a defined loop. A speedway loop usually suggests an oval racing layout, a velodrome is built for bicycle racing, and a drag strip is a straight acceleration course, so none is the standard name for a kart-racing venue.

Kart circuits are also used for driver training and grassroots competition. Longer circuits can host gearbox or superkart events, while indoor tracks typically focus on recreational or arrive-and-drive karting.