In slalom, the skier uses one ski to navigate a preset course, consisting of 6 turn buoys, entrance and exit gates. The skier must pass through both gates and round all 6 buoys in a zigzag path to successfully complete the pass. The speed is constant through the course and after each successfully completed pass, the speed increases by 3 kph until a maximum speed for the division is reached. Thereafter, the rope is shortened after each successfully completed pass, until the skier misses the gates or a buoy. The skier who rounds the most buoys, wins. The best skiers do not miss until the rope is shorter than the distance from the boat to the buoy.