Management of sailing competition includes many elements, from managing enrollment and setting way-points starting line and buoys to follow-up participants' offenses and normalizing the results by type of vessel.The app's purpose is to serve both the participants and the organizers of the competition through all the phases of the competition – From enrollment until ranking the teams and determine the winner. It includes GPS tracking, alerts, and dynamic management of database and competitions.The application was developed with the help of "Israeli catamaran sailor association " ( www.cat-sail.co.il )