In Ice Cross, fearless skaters hurtle down courses of up to 700 meters in length, filled with obstacles such as bumps, turns, hairpins and waves. The ice can be natural, in ski resorts, or artificial, at city centre locations. Riders go 4-at-a-time, at speeds of up to 80 km/h. The fastest two advance to the next round until there is a 4-rider final, in each category (Men, Women, Junior). Depending on the difficulty of the track and the amount of World Championship/Ranking points available for the athletes, race week-ends are labelled ATSX 250, 500 or 1000. Over the past two decades, 1,000 athletes from 51 countries and 5 continents have taken part in races that have become so popular that they draw enormous and enthusiastic crowds.