RORC Rating Office RORC Rating Office IRC Rating Certificate
RORC Rating Office

RORC Rating Office

The RORC Rating Office is part of the Royal Ocean Racing Club. We are an internationally renowned centre of technical excellence for boat measurement, rating, safety, and class technical consultancy.

The Rating Office is based in Lymington in the UK with a small team of full-time staff who issue IRC and YTC rating certificates and provide technical services to the sailing industry, sailors, sailing clubs and event organisers.

Our Services

IRC Rating Rule

IRC Rating Rule

An IRC rating allows different designs of boats to race fairly together. Standard production boats, classics, custom designs, sportboats and high tech racing yachts are all welcome.
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Measurement

Measurement

If you would like your boat weighed and /or measured, RORC have several measurers around the UK.
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Sail Numbers

Sail Numbers

Yachts racing under the Racing Rules of Sailing must hold an approved sail number. This sail number shall be displayed in accordance with RRS 77, Identification on Sails.
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Class Administration

Class Administration

RORC Rating office offers technical consultancy for classes.
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Latest News

From YTC to IRC: When is it time to make the move?

The RORC Rating Office in Lymington administers the two most popular rating systems used in UK yacht racing: the RYA’s Yacht Time Correction (YTC) system …

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GBR IRC Committee highlights strong fleets and fresh opportunities

The 2026 meeting of the GBR IRC Committee, held in Lymington, highlighted a positive outlook for IRC racing in the UK with strong championship participation, …

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Eurosail News

Brought to you by Seahorse magazine and Yachtscoring.com, EuroSail News is a digest of sailing news and opinions, regatta results, new boat and gear information and letters from sailors.

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RORC Rating Office News

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