🏆 Trinity Racing wins Trofeo Princesa Sofía 2026 — Read the race report
News Regions The Boat US vs AUS Regattas Fleet Videos Admin
Regional Fleets
🇬🇧 United Kingdom 🇪🇺 Europe / Med 🇿🇦 South Africa 🇺🇸 United States 🇭🇰 Hong Kong 🇦🇺 Australia 🇮🇪 Ireland
Join the Class →
Cape31 Class Photo Library
Cape31 International Class Association

Race Pure.Cape31.

The world's most exciting 31-foot one-design keelboat — designed by Mark Mills, built in Cape Town, racing on six continents. Fun, competitive, affordable.

80+
Hulls Built
39
2024 Members
7
Global Regions
13
Nations Racing
2017
Est. Cape Town
Latest Class News

C31 News

All News afloat.ie Live Sail Die
Trinity Racing Trofeo Princesa Sofia
Europe30 Mar 2026

Trinity Racing Claims Cape31 Victory at Trofeo Princesa Sofía

In a fiercely contested regatta off Palma de Mallorca, Trinity Racing demonstrated exceptional consistency across the race series to take honours at this prestigious Mediterranean event — a landmark result for the growing European C31 fleet.

Read Report
Cape31 Med Circuit 2026
International18 Mar 2026

Cape31 Med Circuit 2026 Set for Biggest Season Yet — 21 Teams

Read More
STIG European Championship 2025
Europe20 Oct 2025

STIG Clinch Tight Cape31 European Championship on Countback — 25 Boats, 13 Nations

Read More
C31 Europeans Day 1
Europe16 Oct 2025

Shotgunn Opens Strong at C31 Europeans — Light-Air Day One in Palma

Read More
Med Circuit Champions 2025
EU/Med7 Oct 2025

Stig & Give Me Five Crowned 2025 Cape31 Med Circuit Champions

Read More
The Greatest Rivalry in Sailing

1983. Newport.
It Starts Again.

In 1983 a group of determined Australians broke the New York Yacht Club’s 132-year grip on the America’s Cup. The longest winning streak in sporting history — ended by a winged keel, an obsessive designer and a crew that refused to accept the impossible. The US came back and won it. Australia came back and won it again. The greatest rivalry in sailing never ends. Now it’s playing out on Cape31s — one-design fleets forming on two sides of the Pacific. Who builds it first?

United States of America
Show Up.
Win.
The NYYC held the Cup for 132 years. When Australia took it, the US came back and took it again. That’s the American way — show up, win, defend. Pacific Yankee is doing exactly that at the Rolex Big Boat Series.
Boats racing 5+
Coasts SF Bay & East Coast
ORC / IRC wins ✓ Winning now
One-design fleet FORMING →
Flagship event Rolex Big Boat Series
US Fleet →
VS
🏋
Cape31 Class
Australia
Dare to
Win.
Australia II. 1983. Newport. Ben Lexcen’s winged keel. John Bertrand. Alan Bond. They said it couldn’t be done. The Australians did it anyway. That spirit lives in every Cape31 racing at Hamilton Island.
Boats racing 6
Locations NSW · QLD · SA · WA
ORC / IRC wins ✓ Winning now
One-design fleet ✓ Racing 2024
Flagship event Hamilton Island Race Week
AUS Fleet →

In 1983 Australia broke a 132-year winning streak. In sailing, determination and innovation beat everything. Both fleets are winning ORC and IRC right now. Both are building. The Cape31 one-design prize is unclaimed — whichever nation builds the first true one-design fleet sets the standard for the class worldwide. The race is on. Where do you want to be?

🇺🇸 Join the US Fleet 🇦🇺 Join the AUS Fleet
Global Fleets

Racing Worldwide

Cape31 has grown from its Cape Town origins into a truly global class with active fleets across seven regions. Each territory manages its own racing calendar, connected through the Cape31 International Class Association and the central Class Management System at cms.cape31class.com. New fleets are welcome to contact the class to get started.

Register Your Boat View All Boats →
UK
🇬🇧
United Kingdom
The Solent · Cowes Week · RYS · RSYC · 29 boats
🏆 Most Active Fleet
Visit UK Fleet
MED
🇪🇺
Europe / Mediterranean
Palma · St Tropez · Imperia · 21 teams 2026
Fastest Growing
Visit EU Fleet
ZA
🇿🇦
South Africa
Cape Town · V&A Waterfront · Origin Fleet
Founding Fleet
Visit SA Fleet
HK
🇭🇰
Hong Kong
Royal Hong Kong YC · Asia Pacific
Active Fleet
Visit HK Fleet
AU
🇦🇺
Australia & NZ
IRC Racing · Fleet Forming 2025–26
Forming Now
Visit AU Fleet
IRL
🇮🇪
Ireland
Royal Cork YC · RCYC · Growing fleet
Growing Fleet
Ireland News
US
🇺🇸
United States
SF Bay · Newport · Key West · ORC & IRC Winners
Fleet in Development
Join the US Fleet
🌍
Your Region
New fleets welcome worldwide
Get In Touch
Contact Class
C31 racing on the Solent C31 lines drawing
Mark Mills Design · Built Cape Town

The C31

A Grand Prix high-performance 31-foot race boat. Conceived by Lord Irvine Laidlaw, designed by Mark Mills and built by Cape Performance Sailing in Cape Town. Sails 7–8 up with an owner/amateur driver and mixed crew. Proven supreme one-design and handicap performer under IRC and ORC. Speeds in excess of 25 knots downwind.

9.55m
LOA
8.75m
LWL
3.05m
Beam
1800kg
Displacement
2.45m
Draft
7–8
Crew

True One-Design

All hulls, rigs and appendages unmodified. Racing decided by crew skill, not budget. Max 3 professionals per crew.

📦

Container-Shippable

C31 and 2-piece mast fit a standard 40ft container. International campaigns genuinely affordable. Tilt-trailer option available.

🏆

Proven Handicap Winner

2× overall at Les Voiles de Saint-Tropez; 1-2-3 at UK IRC Nationals; Rolex Big Boat Series class winner (USA).

IRC1.135
ORC APH493.3
Crew weightmax 595kg
Cape31 Class Management System

The Fleet

Live CMS Data
80+

Cape31s built and racing worldwide. The new Cape31 Class Management System — built for the class, by the class.

🏆

Regattas

Calendar, notices, NORs and live results. Enter events and manage class-approved regatta schedules across all regions.

Boats & Sail Buttons

Full fleet register with IHC sail button certification, Atlas Vakaros integration, and owner details for all registered hulls.

👥

Entries & Crew

Enter regattas, manage your crew roster with WS Sailor IDs, monitor crew weights and professional sailor limits, pay entry fees online.

🏁

Race Results

Race results and standings by regatta. Sailwave CSV export for official scoring. Full season championship standings per series.

💰

Class Fees & Payments

Class membership fees, regatta entry fees and ad-hoc payments via Stripe. Fee allocation and sticker number tracking for all boats.

⚙️

Class Office Admin

ExCom and Admin access for fleet management, user accounts, class fee setting, Stripe configuration and full data export (JSON backup).

Owner

Enter regattas, manage crew, view your sail buttons and pay class fees

ExCom

Fleet management, results entry, fee tracking — no user admin

Admin

Full access including user accounts, Stripe config and system settings

Demo

Try the system — demo mode active, no live data affected

HullBoat Name Sail No. Owner 🏴
9JiraffeGBR 315XSimon Perry🇬🇧
15SquirtGBR 311XGiorgio Tortorolo🇬🇧
19Flying Jenny 19USA 81567Sandy Askew🇺🇸
27Black StarSUI 27Christian Zuerrer🇨🇭
28AntixIRL 3128Anthony O'Leary🇮🇪
35ShotgunnIOM 31Michael Wilson🇮🇲
38MotionsNED 3138Lennard van Oeveren🇳🇱
55AspirePOL 17Kusznierewicz / Gacek🇵🇱
57EssentiaROU 1001Catalin Trandafir🇷🇴
62Pacific YankeeUSA 62Drew Freides🇺🇸
65Stella MarisAUT 3165August Schram🇦🇹
74Warrior WonUSA 31074Chris Sheehan🇺🇸
76StigITA 3176Alessandro Rombelli🇮🇹

Showing 13 of 39 registered 2024 class members across 13 nations. Full register in the CMS.

View Full Fleet Register →
Race Calendar

2026 Regattas

Live via CMS
2026
Cape31 Gold Cup 2026 — New International Event
📍 Venue TBC · View on CMS
Gold CupInternational
28
Mar 2026
Trofeo Princesa Sofía — C31 Class
📍 Palma de Mallorca, Spain · RCNP
InternationalEU Circuit
14
Jun 2026
Cape31 UK National Championships
📍 Cowes, Isle of Wight · Royal Yacht Squadron
UK Nationals
28
Jul 2026
Cowes Week C31 Series
📍 Cowes, Solent, UK
UK Fleet
25
Sep 2026
Les Voiles de Saint-Tropez
📍 Saint-Tropez, France · YCPR
InternationalEU Circuit
12
Oct 2026
Cape31 European Championship
📍 Palma de Mallorca, Spain
Championship
18
Jan 2027
Key West Race Week
📍 Key West, Florida, USA
US Fleet

Full schedule, crew declarations and results via the Cape31 Class Management System.

Full Calendar Enter a Regatta →
On the Water

Watch C31 Racing

🎬
Official Boat Tour
Cape31 Official Boat Tour — Mark Mills Design Walkthrough
YouTube — @cape31 Photo Gallery Live Sail Die
C31 Community

Follow Cape31

💘 @cape31class — 5k 💘 @cape31uk — 4.5k 💘 @cape31eu 📷 @cape31class — 4k 📷 @cape31eu — 3.4k ▶️ @cape31 YouTube 🎵 @cape31class TikTok
Trinity Racing takes Princesa Sofía 2026 🏆
@cape31class · 4 days ago
C31 Med Circuit 2026 loading — 21 teams committed!
@cape31class · 2 weeks ago
STIG — 2025 Cape31 European Champions 🏉
@cape31class · Oct 2025
Stig & Give Me Five — 2025 Med Circuit Champions 🏆
@cape31class · Oct 2025
Official Class Partners
Mills Design
Cape Performance
Sailing
31 North Yachting North Sails
Doyle Sails
Gold Partner
TTC Marine
CMS Provider
Become a Partner
Class Administration

Admin Access

Access levels for the Cape31 International Class Association website. News updates, link changes, regatta entries and results are managed through Cape31 Class Management System. For structural website changes, contact the administrator. This site will migrate to cape31class.org once approved by the Executive Committee.

🔑
Super Admin
Cape31 International Class Association
Full website content management
All regional sections — add, edit, delete
Manage partner logos and sponsor links
Create and close regattas in the CMS
Add and verify boats in the registry
Publish and manage class rules documents
Full CMS admin across all series and regions
Update social media links and accounts
Domain, DNS and hosting management
Grant / revoke admin access to other users
📁
Regional Admin
Per region: UK · EU/Med · SA · US · HK · AU · IRL
Add and edit news for their region
Manage regional events and Notice of Race
Update regional fleet boat information
Enter and manage regatta entries (CMS)
Post race results for regional events
Submit crew declarations
Upload regional documents and NORs
Update regional social media links
View (read-only) all other regions
UK & international: [email protected]
EU/Med & media: [email protected]
CMS support: [email protected]
✏️
Content Editor
News · Results · Links · Photos
Add news articles for assigned region
Add and update external news links
Update race results and standings
Upload photos to the gallery
Post updates to class social media
Submit regatta entries on behalf of boats
Update assigned boat profiles in CMS
Cannot delete published content
Cannot modify partner or class rule content
Request access:
[email protected]
Subject: Editor Access — [Your Region]

How to add a news link or update content: Log in at Cape31 Class Management System with your credentials. News posts added through the CMS will feed to this site automatically. For website layout changes, new regional pages, or domain migration queries (to cape31class.org), email [email protected] with subject "Website Update Request". The CMS is built and maintained by TTC Marine Ltd — direct technical queries to [email protected]. Race circuit news and media partnerships: [email protected] · thirtyoneracecircuit.com