Skimboarding contests are held to establish ranking amongst skimboarders and provide a way for companies to market products. In North America there are two centralized organizations that hold events: United Skim Tour and Skim USA. There are also a lot of minor competitions such as the Virgin River Classic held in St. George Utah. In recent years the United Skim Tour (UST) has focused solely on professional competition while Skim USA has gravitated towards amateur competition. Some events are both Skim USA and UST events, and all Skim USA competitions have a professional division.