Welcome to the official website of the International Optimist Dinghy Association
Race Management

Sailwawe scoring program

http://www.sailwave.com/
Race Management

St. Pete Scorer scoring program

http://www.stpetescorer.com/
Race Management

Racing Rules of Sailing (RRS)

http://www.sailing.org/documents/racingrules/index.php
Race Management

Case Book (interpretations of the RRS)

http://www.sailing.org/documents/case-book.php
Race Management Technical

Equipment Rules of Sailing (ERS)

http://www.sailing.org/documents/equipmentrules/index.php
Race Management

ISAF Regulations

http://www.sailing.org/documents/isaf-regulations.php

Officials' Manuals

http://www.sailing.org/documents/officials-manuals.php