IWF's competition format and judging criteria make for a high energy, easy to understand and exciting event calculated to arouse maximum spectator and media interest. IWF professional extreme events are held over a short section of difficult whitewater. All events have a mass start, with a minimum of three competitors starting together on any given run.
Competitors move on to the next round through a process of elimination.
Only one run per round is allowed. IWF professional freestyle events are held on either a wave or a hole, or a combination thereof. Competitors are alloted three runs, the best of which is be used to determine the winner. Judges look for continuity and flow, the originality and quality of moves linking the required moves, as well as artistic impression. Membership in the IWF is required by each athlete competing in a professional event.