CBH Rating System
Australian Class Based Handicap (CBH) Rating System
Following a 2020 review and stakeholder consultation, Australian Sailing has updated the Class Based Handicap (CBH) formula to align with World Sailing’s Equipment Rules and allow a wider range of Trailable Yacht and Sports Boat classes to receive a CBH rating.
The Trailable Yacht & Sports Boat Rule has consequently been replaced by the CBH Rating System. CBH ratings are now administered by Australian Sailing staff, who also coordinate the National Championships.
About the CBH Rating System
The CBH Rating Systems provides a National System for even and fair racing on handicap in a mixed fleet of Trailable Yachts and/or Sports Boats. Trailable Yacht and Sports Boat owners can gain a new CBH at any time of the year. The system also supports Australian Sailing in its work to promote Trailable Yacht and Sports Boat racing activities within the states and territories and at national level.
Key Points:
- The Rating System only requires boat measurements, not performance data.
- The CBH rating list will be published online and updated regularly and new boats are added.
- The CBH formula will be reviewed annually and any amendments will be posted from time to time.
CBH Rating System - Overview Document
Applications, Amendments and Trials
Find the information and resources relevant to your needs in this section below.
| Resource Links | |
| To declare your boat or your class measurements, you will need to download, complete and upload the Measurement Input Sheet. | Download Measurement Input Sheet |
| The CBH Rating Measurement Manual is available to download here. | Download CBH Measurement Manual |
| The Light Ship Requirements for Weighing are available to download here | Download Light Ship Reference for CBH |
| Application Links | |
| If you are a Class Representative and wish to receive or amend a CBH Rating, apply here ($125.00 AUD fee) | Class Application - CBH Rating |
| If you are the owner of a One-of-a-kind boat due to modification or a one-off design and wish to apply or amend a CBH Rating, apply here ($125.00 AUD fee) | One-of-a-Kind Application - CBH Rating |
| If you are seeking a Certificate Trial, which will not be valid for racing, apply here ($65.00 AUD fee) | Trial Application - CBH Rating |
CBH Rating List
View the current CBH ratings for Trailable Yacht and Sports Boat classes, used to account for differences in boat performance when calculating corrected race results. Any boat with a rating of 1 has insufficient data at the time of publishing the reports.
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| NOTE: The rating formula is reviewed once a year and a new list is issued each year on the 1st of August. |
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Seeking Class measurements The Australian Sailing Rating office is still looking for some Class measurements. If you can provide measurements for a Class that is not listed in the new rating list, please contact the Rating Office, your help will be much appreciated. Contact us at ratings@sailing.org.au or (02) 9170 6917 |
| FREQUENTLY ASKED QUESTIONS |
No, the new rating is a different formula than the old one.
To add a boat or a Class to the CBH list you need to contact the Ratings Office (ratings@sailing.org.au) or follow the steps found in the “NEW APPLICATION” paragraph at the top of the web page.
The CBH rating formula is not published to prevent the optimisation of a boat to “beat” the rating. The aim of the CBH is to be a simple rating system, cheap and easy to use. The aim of this rating is not to encourage boat modification outside of Class Rules.
There is a charge of $100.00 to add a boat or a Class to the list.
If a boat doesn’t comply with its Class Rules because it has been modified, then the owner will have to provide the new measurements for the boat and apply for an OAK (One of A Kind) CBH rating
Principles for re-weighing (In the absence of provenance):
- if the boat hasn’t been weighed for 10 years.
- if there has been a change of owner and the boat hasn’t been weighed for 5 years.
- if there has been an amendment to the boat which will effect the weight.
- if the load cell is outside accepted tolerances or not currently within a suitable calibration cycle (max is 2 years).
- if the source of the weight cannot be ascertained.
Where a yacht is required to be re-weighed it is the owner’s responsibility to arrange weighing. Australian Sailing can assist you to complete this task.