Sydney Hobart. Fastnet. Middle Sea.
The flagship offshore races — now with fleet analytics.
Every fleet has a fingerprint.
From the Solent to the Aegean — see how the physics plays in your waters.
Hidden ShapeThe hidden shape of the fleet.
The kinds of boat that keep appearing when every hull is measured the same way.
The shape of the fleet, before the scoreboard has anything to say.
Available as a product. The offshore race archive here is the basis of the Event Pack — the packaged, public-results-only pack for organizers and media. See Event Pack →
FleetEdge bridges IRC and ORC with physics — not just race results. Using measured hull dimensions from IRC certificates — length, beam, draft, and displacement ratio — FleetEdge matches each IRC boat to its ORC design-family equivalent and projects the full physics profile. A J/109 racing IRC in the Solent is the same hull as a J/109 racing ORC in the Mediterranean. Same mold. Same hydrodynamics. Same physics.
The result: 1,600+ IRC boats that have never held an ORC certificate are now analyzed with ORC-grade physics across 52 dimensions per boat — grouped into eight performance archetypes. Together with the ORC fleet, the analyzed population stands at 11,207 boats (July 2026; how the counts reconcile) — cross-handicap fleet analytics at scale. Six flagship event series — the Rolex Sydney Hobart, Rolex Fastnet, Rolex Middle Sea Race, RORC Caribbean 600, RORC Transatlantic, and Cowes Offshore Racing Series — carry full fleet analytics including archetype classification, measured profiles, weather enrichment, and Performance Potential scoring.
FleetEdge alters no rating and no score. IRC remains the rating authority, and each event’s organizing authority remains its scoring authority; FleetEdge is an independent analytics layer reading published results, and claims no endorsement. How the IRC relationship works →
Six flagship event series.
Rolex Sydney Hobart
Australia's blue water classic. 628 nm from Sydney Harbor to Constitution Dock, Hobart.
Rolex Fastnet
The original offshore classic. Cowes to Fastnet Rock to Cherbourg — first raced in 1925.
Rolex Middle Sea Race
606 nm around Sicily. The Mediterranean's premier offshore event, hosted by the Royal Malta Yacht Club.
RORC Caribbean 600
600 nm through 11 Caribbean islands, starting and finishing in Antigua.
RORC Transatlantic
Lanzarote to Antigua — the annual transatlantic race organized by the Royal Ocean Racing Club.
Cowes Offshore Series
A series of offshore races from Cowes into the English Channel and Solent — the heartland of British offshore racing.
Two rating systems. One physics platform.
Thousands of boats race under IRC — one of the world's most widely used offshore handicap systems — without the hull geometry, rig dimensions, and polar data that ORC certificates provide. These boats raced outside physics-based fleet analytics.
FleetEdge's IRC-to-ORC mapping matches each IRC certificate to its ORC design-family equivalent from publicly available hull dimensions, and the matched boat inherits the full ORC physics profile. The mapping mechanics — the confidence tiers, the dual-rated validation, and the boundaries — are owned by IRC & SailrScience.
IRC Certificates
Measured hull dimensions from the IRC rating authority — matched to ORC class siblings by geometry across four confidence tiers.
Match Rate
The share of the 3,000+ IRC certificates matched to an ORC design family — First 34.7, J/109, Dufour 34, J/88, TP 52, and 40+ more production classes.
New Boats
IRC boats that have never held an ORC certificate, now analyzed with ORC-grade physics across 52 dimensions and grouped into 8 performance archetypes.
Transparent provenance. Every IRC twin is clearly labeled as a physics projection from an ORC class sibling — not as measured certificate data. The match tier, confidence level, ORC donor identity, and geometric distance between the two hulls are recorded and visible. The ORC certificate's integrity is preserved. What changes is its reach.
Full fleet analytics on every IRC event.
Every flagship IRC event in FleetEdge carries archetype classification, dimensional scatter analysis, cohort filtering, weather enrichment from ERA5, and Performance Potential scoring at race level. Per-leg, leg-integrated PPI is live for Rolex Fastnet Race 2025; Sydney–Hobart, Rolex Middle Sea, RORC Caribbean 600, and Cowes Offshore carry race-level PPI coverage today. The Events filter lets you build micro-cohorts by race participation — compare this year's Sydney Hobart fleet to last year's, filter by archetype or size range, and study competitive patterns across editions.
Where current shapes IRC finishing order.
Current intelligence is a flagship-scoped overlay. HYCOM GLBy 93.0 resolves the decisive current signal at the five tidal-dependent IRC offshore classics — Cowes, Fastnet, Rolex Middle Sea, Sydney–Hobart, and RORC Caribbean 600. Not every IRC race turns on current. These five do. See Ocean Intelligence for methodology and coverage posture.
The five, at a glance: Rolex Fastnet Race — the Needles-to-Plymouth tidal chain. Rolex Sydney–Hobart — the East Australian Current boundary. RORC Caribbean 600 — island-chain eddy structure. Rolex Middle Sea Race — the Messina Strait reversal. Cowes Offshore — the Solent tidal cycle. Ocean Intelligence owns the race-by-race treatment: the current engine, how each course is sampled, and each race's current coverage today.
Go deeper.
Ocean Intelligence
HYCOM current attribution across the five tidal-dependent IRC flagships — the current engine behind every result.
Fleet Overview
Browse every fleet — ORC regional and IRC offshore.
IRC & SailrScience
How SailrScience works with IRC data — independence, transparency, and provenance.
See IRC Racing in the Fastnet fleet.
Fastnet racing brings IRC racing into sharp relief — see how the physics meets the fleet's regime and rivalries.
Explore FastnetThe offshore classics. Now with physics.
11,207 boats analyzed across ORC and IRC (July 2026) — cross-handicap fleet analytics at scale.