Sydney Hobart. Fastnet. Middle Sea.
The world's greatest offshore races — now with fleet analytics.
FleetEdge is the first platform to bridge 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 analysed with ORC-grade physics across 52 dimensions per boat — reduced through feature extraction to 31 dimensional features, four PCA factors, and eleven performance archetypes. Combined with 9,591 ORC-rated boats, the FleetEdge fleet now covers 11,207 boats — the world's largest cross-handicap analytics platform. 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, dimensional profiles, weather enrichment, and Performance Potential scoring.
Six flagship event series. 23 race editions.
Rolex Sydney Hobart
Australia's blue water classic. 628 nm from Sydney Harbour 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 Grenada — the annual transatlantic race organised 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 — the world's most widely used offshore handicap system — without the hull geometry, rig dimensions, and polar data that ORC certificates provide. Until now, these boats were invisible to physics-based fleet analytics.
FleetEdge's IRC-ORC Synthetic Twin process matches each IRC certificate to its ORC design-family equivalent using measured hull dimensions — length, beam, and draft cross-checked against dual-rated boats where both certificates exist. Four confidence tiers cover exact sail-number matches, name-plus-geometry concordance, class-sibling hull clustering, and unmatched boats. The matched IRC boat inherits the full ORC physics profile: polar performance data, hull hydrodynamics, rig geometry, and stability characteristics.
IRC Certificates
Measured hull dimensions from the IRC rating authority — matched to ORC class siblings by geometry across four confidence tiers.
Match Rate
IRC boats matched to their ORC design families — 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 analysed with ORC-grade physics across 52 dimensions reduced to 31 features, 4 latent factors, and 11 performance archetypes.
Transparent provenance. Every IRC twin is clearly labelled 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-tier. Per-leg leg-integrated PPI is canonical for Rolex Fastnet Race 2025; the v1.1 release advances Sydney–Hobart, Rolex Middle Sea, RORC Caribbean 600, and Cowes Offshore from race-tier to per-leg coverage. 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.
HYCOM Fastnet Rolex Fastnet Race — the Needles-to-Plymouth tidal chain. The Solent start and the Portland Bill, Lizard, and Plymouth approach each turn on tidal timing. A division that caught the west-going gate beats one rounded into counter-tide by hours, not minutes. Ocean Intelligence overlays the HYCOM current state on each leg of the race so the result reads as an observable record, not a black box.
HYCOM Sydney–Hobart Rolex Sydney–Hobart — the East Australian Current boundary. The EAC axis shifts edition to edition and day to day. The IRC finishing order turns on which boats rode the favourable axis south and which hit its counter-current margin. The HYCOM overlay resolves that axis for each edition at race-tier; the v1.1 release advances Sydney–Hobart to per-leg.
HYCOM Caribbean 600 RORC Caribbean 600 — island-chain eddy structure. The Antigua–Guadeloupe–Saba–Anegada course is a serial eddy negotiation. Every island shadow spawns an eddy field, and every channel has its own current profile. HYCOM maps each boat's passage through that field at race-tier; the v1.1 release advances RORC Caribbean 600 to per-leg coverage.
HYCOM Middle Sea Race Rolex Middle Sea Race — the Messina Strait reversal. The Strait of Messina is the race's single decisive current gate, and its flow reverses on the tidal cycle. A fleet on favourable flow beats a fleet on counter-flow by hours. HYCOM resolves the gate state for each boat at its actual arrival time at race-tier — not the abstract state, the state the boat actually met. The v1.1 release advances Rolex Middle Sea Race to per-leg.
HYCOM Cowes Offshore Cowes Offshore — the Solent semidiurnal cycle. The Solent runs on a sharp 12.4-hour tidal cycle with pronounced peak ebbs and floods. Every Cowes start meets the clock; every weather mark rounds into one of its phases. Ocean Intelligence aligns each race's geometry against the prevailing tidal state at that moment of the edition at race-tier; the v1.1 release advances Cowes Offshore to per-leg.
Go deeper.
Ocean Intelligence
HYCOM current attribution across the five tidal-dependent IRC flagships — the current engine behind every result.
Fleet Overview
Browse all 16 fleets — 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 across ORC and IRC — the world's largest cross-handicap fleet analytics platform.