Welcome to the UK Great Lakes Sailing Handicaps Website 

Latest News:

The Autumn update of  the Great Lakes Handicaps for 2020-21 is here!

In addition to the changes made in the Spring based on the results from the Selden SailJuice Winter Series 2019-20 and the RYA PNs for 2020, we have now added a new class, the RS Neo, and clarified the Nacra 16 configurations. We have also added the ILCA 4, 6 and 7 alongside the Laser classes.

If you have any comments or suggestions do contact us now. 


This site has a set of dinghy, multihull and inland keelboat handicaps refined over a number of years by the Great Lakes Handicap Committee. These handicaps have been found to work well for large flat-water venues where a beat of a half to one kilometre is typical.  They work across a wide range of wind speeds and a wide variety of racing formats.  They have been adopted by several clubs for their racing and used at major summer and winter events across the country.  

Photo:  Tim Olin 

The handicaps are published in the spring once the previous SailJuice Winter Series has ended and the RYA has updated the Portsmouth Numbers.  They are then reviewed in the autumn to add any new or changed classes and are finalised for use in the following SailJuice Winter Series.

The handicaps, the method used to set them, the team doing this work and how you can use and help develop these handicaps can all be accessed from the menu bar at the top of this page. 

"The success and growth of handicap racing depends on having fair handicaps that give the best sailors an equal chance of winning.   I am delighted at the work that the Great Lakes team has done over several years to provide this level playing field for the Selden SailJuice Winter Series.  The varied mix of classes and boat configurations in the series top positions is a testament to the success of the team."

Andy Rice, SailJuice Series Sponsor

"The RYA is delighted to see the results that can be achieved by using the Portsmouth Yardstick Scheme to its full potential - adjusting handicaps to provide fair racing.  The Great Lakes handicaps have been assessed using results from inland lakes.  Your club can tailor its handicaps using the PYOnline website to assess the results from your handicap racing - returning your data to the RYA at the same time."

Adam Parry, RYA Technical Manager