Cross country running is a sport in which people run a race on open-air courses over natural terrain. The course, typically 1.6 – 3 kilometres (1–1.86 miles) long for Elementary School races, may include surfaces of grass and earth, pass through woodlands and open country, and include hills, flat ground and sometimes gravel road. It is both an individual and a team sport, as runners are judged on an individual basis and a points scoring method for teams.