Menu

Ireland's sailing, boating & maritime magazine

RBC Brewin Dolphin proudly supporting Afloat and Irish Boating

afloat headers RORC

40 Years of IRC Rating is Celebrated by RORC and UNCL

21st March 2024
The Nielsen 59 Hound and Lombard 46 Pata Negra
Credit: Tim Wright

In 2024, the International Rating Certificate (IRC) celebrates 40 years of yacht racing around the world.

Back in the early 1980s, most boats were racing under the International Offshore Rule (IOR), but it was starting to be more concentrated on racing boats and leading to extreme type-forming and pinched sterns, causing “too much rock and roll” in the words of the Royal Ocean Racing Club (RORC) Commodore at the time, the late Robin Aisher. In 1983 he and the Commodore of l’Union National de la Course au Large (UNCL) Jean Louis Fabry, whilst enjoying an evening out in Paris, decided that a rule was needed that would rate any size and shape of boat. Follow-up conversations, usually held at the end of an RORC cross-channel race, and included RORC Racing Manager Alan Green, clinched the deal. A brief summary of the idea was jotted down on the back of an envelope, and the RORC-UNCL joint venture, Channel Handicap System (CHS), was born to allow cruiser/racers to compete with a simple but mathematical rating rule while IOR continued to cater for the top end racing boats.

Cal 40 Huey Too Photo: Arthur DanielCal 40 Huey Too Photo: Arthur Daniel

The first CHS certificates were issued in 1984 and the system evolved into IRC in 1999. It became a World Sailing (ISAF) international recognised rating system in 2003. Over the last 40 years IRC has continued to rate a huge variety of monohulls including IOR, production cruiser/racers, superyachts, sportboats, classics and cutting edge race boats, always with the fundamental policy of protecting the existing fleet. It has been at the forefront of permissive development taking an early stance on rating features such as retractable bowsprits, asymmetric spinnakers, canting keels and water ballast. For decades IRC has been used for the major trophies in world-renowned inshore and offshore events and continues to provide a simple, inexpensive foundation for competitive sailing around the world.

In the early days CHS certificate processing was a laborious process, unlike the user-friendly systems in place today. Two decades of development later it became possible to import application data into the database and certificates were available as PDFs. The current application system was developed by the current Director of Rating, Dr Jason Smithwick, and has allowed improvements such as the certificate boat data page including an image of the boat, and IRC data published online.

Carkeek 52 Rán Photo: Tim WrightCarkeek 52 Rán Photo: Tim Wright

The stability and endurance of the IRC rating system and its development owe much to the unparalleled continuity within its team, both past and present. The RORC Rating Office in the UK prides itself on longevity of service and depth of experience, boasting a combined 70 years of service amongst its current four-person technical team, and similar long-term experience is seen across the Channel in France at the Yacht Club de France Centre de Calcul IRC, and on the IRC Technical Committee. The unwavering dedication and collective experience of this international team underscore the resilience and longevity of the IRC rating system, ensuring its continued fairness, relevance and effectiveness in the world of competitive sailing.

Published in RORC
Afloat.ie Team

About The Author

Afloat.ie Team

Email The Author

Afloat.ie is Ireland's dedicated marine journalism team.

Have you got a story for our reporters? Email us here.

We've got a favour to ask

More people are reading Afloat.ie than ever thanks to the power of the internet but we're in stormy seas because advertising revenues across the media are falling fast. Unlike many news sites, we haven't put up a paywall because we want to keep our marine journalism open.

Afloat.ie is Ireland's only full-time marine journalism team and it takes time, money and hard work to produce our content.

So you can see why we need to ask for your help.

If everyone chipped in, we can enhance our coverage and our future would be more secure. You can help us through a small donation. Thank you.

Direct Donation to Afloat button

THE RORC:

  • Established in 1925, The Royal Ocean Racing Club (RORC) became famous for the biennial Fastnet Race and the international team event, the Admiral's Cup. It organises an annual series of domestic offshore races from its base in Cowes as well as inshore regattas including the RORC Easter Challenge and the IRC European Championship (includes the Commodores' Cup) in the Solent
  • The RORC works with other yacht clubs to promote their offshore races and provides marketing and organisational support. The RORC Caribbean 600, based in Antigua and the first offshore race in the Caribbean, has been an instant success. The 10th edition took place in February 2018. The RORC extended its organisational expertise by creating the RORC Transatlantic Race from Lanzarote to Grenada, the first of which was in November 2014
  • The club is based in St James' Place, London, but after a merger with The Royal Corinthian Yacht Club in Cowes now boasts a superb clubhouse facility at the entrance to Cowes Harbour and a membership of over 4,000

At A Glance – RORC 

RORC Race Enquiries:

Royal Ocean Racing Club T: +44 (0) 1983 295144 E: [email protected] W: http://www.rorc.org/

Royal Ocean Racing Club:

20 St James's Place, London SW1A 1NN, Tel: 020 7493 2248 E: [email protected] 

2026 RORC Key dates

Key RORC 2026 dates extracted from the programme:

January–February 2026
• 11 January – RORC Transatlantic Race (Lanzarote to Antigua)
• February (dates vary) – Nelson’s Cup, Antigua
• 23 February – RORC Caribbean 600

May 2026
• 2 May – Cervantes Trophy Race (Cowes to Le Havre)
• 15 May – North Sea Race
• 22–25 May – IRC European Championships, International Poole Regatta
• 23 May – Myth of Malham Race
• 30 May – De Guingand Bowl Race

June 2026
• 12 June – Morgan Cup (Cowes to Dartmouth)
• 20 June – Round Ireland Race (Wicklow)

July 2026
• 3 July – Cowes–Dinard–Saint Malo Race
• 25 July – Channel Race

August 2026
• 8 August – Baltic Sea Race (Helsinki)
• 9 August – Round Britain and Ireland Race (Cowes)
• 26–29 August – IRC National Championship (Dartmouth)

September 2026
• 4 September – Cherbourg Race

October 2026
• 17 October – Rolex Middle Sea Race (counts towards 2027 championship)

Featured Sailing School

INSS sidebutton

Featured Clubs

dbsc mainbutton
Howth Yacht Club
Kinsale Yacht Club
National Yacht Club
Royal Cork Yacht Club
Royal Irish Yacht club

Featured Brokers

leinster sidebutton

Featured Webcams

Featured Associations

ISA sidebutton
ICRA
isora sidebutton

Featured Marinas

dlmarina sidebutton

Featured Chandleries

CHMarine Afloat logo
https://afloat.ie/resources/marine-industry-news/viking-marine

Featured Sailmakers

northsails sidebutton
uksails sidebutton
watson sidebutton

Featured Blogs

W M Nixon - Sailing on Saturday
podcast sidebutton
BSB sidebutton
wavelengths sidebutton
 

Please show your support for Afloat by donating