ISORA - Promoting the sport of Offshore Racing in the Irish Sea
Since 1972
The Association is run by volunteers for the benefit of competitors by working in partnership with boat owners, crew, yacht and sailing clubs, other associations and the governing bodies for boating in Ireland, Wales and the UK.
About ISORA - Racing
ISORA provides offshore racing in the Irish Sea and two separate Coastal Series - in Ireland and UK
Offshore RacingCoastal RacesThe ISORA gang are a friendly lot and are more than willing to help with the boat set up process or sail trimming techniques and general tips, we will also share our experiences of boat fixes and solutions for common problems. Remember to ask someone by e-mail to
This is a simple start of season guide and is intended as an aid only to assist with the setting up of your yacht for the ISORA Offshore series.
Are you familiar with the requirements of Category 4, Category 3 (with life-raft) and Notice of Race and General Conditions - read more here.
Have you applied for your IRC certificate?
When is the next service date for the life-raft, have you serviced your life jackets and checked your flares and fire extinguishers?
Is the engine serviced and ready? Are the ship batteries in good condition? Have you checked the electrics, instruments and the navigation lights? Torches and spare batteries?
Update your safety equipment list and position chart. Check sea cocks and are the bungs secure next to each sea cock?
Another item to check is the sail bag zips - are they runing free? (written by a formed foredeck crew!)
ISORA provides owners and crew an opportunity to race offshore in a friendly, family atmosphere. Racing is always competitive but there is always a great emphasis on safety which starts with an understanding of the risks involved in offshore racing and the constant need to be aware of changing conditions and a total respect for the elements is essential to enjoying our sport in safety.
We expect competitors to race responsibly and make appropriate provision for the safety of crews and boats, and maintain equipment carefully.
All ISORA competitors will abide by the following:
Competitors should be familiar with and abide by the rules set out in the ISORA Racing Documents as follows:
Inshore and Coastal races will be subject to the rules set out by 'World Sailing' Category 4. The Offshore races are generally subject to 'World Sailing' Category 3 compliance with Liferaft (3+). Longer RORC races such as the Round Ireland Race will be Category 2. The relevant Category for each race will be made clear in the Supplemental Sailing Instructions for that race.
World Sailing describe the conditions for each Category as follows:-
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Category 1 - Races of long distance and well offshore, where boats must be completely self sufficient for extended periods of time, capable of withstanding heavy storms and prepared to meet serious emergencies without the expectation of outside assistance
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Category 2 - Races of extended duration along or not far removed from shorelines or in large unprotected bays or lakes, where a high degree of self-sufficiency is required of the boats
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Category 3 - Races across open water, most of which is relatively protected or close to shorelines. The things you need and need to do are listed in this document OSR Category 3 plus Category 2 Life-rafts >here and in
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Category 4 - Short races, close to shore in relatively warm or protected waters normally held in daylight. The things you need and need to do are listed in this document
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To check what you require for each race please refer to the World Sailing Offshore Special Regulations 2020 - 2021(these are valid until December 2021. Here.
Click here to download the WS -OSR Category 3 (with liferaft) Checklist
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For racing in ISORA it is important that you understand the rules for racing around Waypoints and the following links are provided for reference.
Virtual Waypoints - World Sailing Guidance on Racing around Waypoints
Virtual Waypoints - Appendix WP - Rules for Racing Around Waypoints
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By entering an ISORA race you will have made the following declaration as part of the entry conditions
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Night Races and TSS (Traffic Separation Zones)
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Warning on the movement of ballast - from the World Sailing - Racing Rules of Sailing 2021 - 2024
51. MOVABLE BALLAST
All movable ballast, including sails that are not set, shall be properly stowed. Water, dead weight or ballast shall not be moved for the purpose of changing trim or stability. Floorboards, bulkheads, doors, stairs and water tanks shall be left in place and all cabin fixtures kept on board. However, bilge water may be bailed out.
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Page updated 18th October 2020
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