Welcome to the Classic Rating Formula website.  This is where you apply for and view your 2019 CRF MkII certificate, search for other yachts’ certificates, and learn more about CRF MkII.

CRF MkII was introduced in 2017 as an update to the original Classic Rating Formula which has been in use for decades.  CRF MkII ratings are based primarily on the same owner-declared data used by previous versions of CRF with the addition of inputs related to centerboard extension, spinnaker tack point, and generic underbody type.

The original version of CRF was developed over a number of years thanks to the efforts of Chris Wick, Bill Doyle, Steve White, Maynard Bray and Joel White who, between them, shouldered the thankless task of maintaining and administering the rule for decades.  Many years of competition and growth in classic yacht racing inevitably exposed shortcomings in the original form, however, and the development of CRF MkII in 2016 drew on a combination of the original formula, experience gained from other successful rating systems and on new access to sailing yacht performance data.

The goal of CRF MkII is to provide an objective, accurate and transparent rating system.  To that end, it is anticipated that adjustments to the formula to take into account new performance data may be made from year to year.  The 2018 formula has been modified to reflect biases that were identified by an objective, in-depth analysis of 2017 race results.  Specifically, yachts with relatively narrow beam and heavy displacement (e.g. Universal and International rule yachts) were observed to be advantaged, while yachts with unusually deep draft (via either fixed keel or centerboard) were observed to be disadvantaged.  Therefore, the 2018 CRF MkII ratings for nearly all yachts will change relative to their 2017 ratings, but most only slightly.  Those that see a significant change will find that other yachts of the same type will have changed by a similar amount, so the competitive balance within groups should be maintained.

All yachts competing in a classic regatta will need a new certificate for 2019.  In 2019, membership in the Classic Yacht Owners Association will be required for a certificate to be issued. (to join CYOA, please visit www.classicyachts.org).  To get your 2019 certificate, click on the GET/RENEW A CRF tab, and follow the instructions.  If you had a certificate in 2017 or 2018, information from that certificate will autofill this year’s application, thereby simplifying the process.  If you have not applied for a CRF MkII rating, you will need to set up a CRF MkII account (create a user name and password) and then start your application for a 2019 rating certificate.  Note that if you own more than one yacht or you have sold one and bought another, you do not need a separate account for each yacht.  To register additional yachts, just go to your CRF MkII account and follow the directions for adding a different yacht to your account.  Also, if any of your prior measurements or data on your current yacht have changed, you will need to update that data to ensure that your rating is accurate.

All correspondence in reference to your rating will now be managed through this site, and you will also have seamless access to the CRF database.