Dirt racing is a form of motorsport that takes place on unpaved tracks, typically made of clay or dirt. This type of racing can include various vehicle classes, such as stock cars, modifieds, and sprint cars. The surface creates unique challenges for drivers, as it can change throughout the race due to weather and tire wear. Races are often held on oval tracks, but dirt racing can also occur on road courses. Events can range from local competitions to national series, attracting fans who enjoy the excitement of high-speed action and the skill required to navigate the slippery surface.