Portsmouth Yardstick (PY)

The RYA Portsmouth Yardstick Scheme is provided to enable clubs to allow boats of different classes to race against each other fairly. The RYA actively encourages clubs to adjust handicaps where classes are either under or over performing compared to the number being used. The Portsmouth Yardstick list combines the Portsmouth numbers with class configuration and the total number of races returned to the RYA in the annual return. This additional data has been provided to help clubs achieve the stated aims of the Portsmouth Yardstick system and make adjustments to Portsmouth Numbers where necessary. Clubs using the PN list should be aware that the list is based on the typical performance of each boat across a variety of clubs and locations.

The RYA list of numbers can be viewed below.

Portsmouth Yardstick Numbers 2019

Historic Portsmouth Yardstick Numbers

How do we calculate using PY?

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Download a PFD version of this guide with worked examples here.