Is there a rating for Tiwal saiboats?

The Portsmouth Yardstick rating system was initially developed in England in the mid-20th century and is now managed by the Royal Yachting Association (RYA). In the US, the scheme was adopted and somewhat remodelled and is today known as the Dixie-Portsmouth number, and is overseen by US Sailing.

All variations of the scheme aim to handicap boats based on their relative performance against other boats they race with. Schemes are designed to give clubs the tools to run fair handicap racing, by being able to handicap any boat without the need for measurement and by being administrable by club members.

All Tiwal models have been given suggested RYA Portsmouth Yardstick ratings, which are given below:

Inflatable sailing dinghies are relatively new on the market and clubs are encouraged to share their own Tiwal racing data with the Royal Yachting Association, to enable further evaluation. 

As at the end of November 2023, we are working on having the above ratings transferred to the US system and will update this page once these are available.