The below entry form is for Classes 1-11, which includes: IRC 1, IRC 2, IRC 3, Cruising, Platu (Coronation Cup), Ocean Multihulls, F18, Open Beach Multihull, Single-Handed Monohull Dinghy, Double-Handed Monohull Dinghy and IOM Class RC Yachts.
If you wish to enter the Thailand Optimist National Championships (Class 12), click HERE.