Five tidal races. One current engine.
Ocean Intelligence pairs HYCOM GLBy 93.0 reanalysis with race-tier current attribution across all five IRC tidal flagships. Per-leg integrated Performance Potential is canonical for Rolex Fastnet Race 2025 and ships across Sydney–Hobart, Rolex Middle Sea Race, RORC Caribbean 600, and Cowes Offshore with the v1.1 release.
Every tidal race has its own clock.
See how current regime separates Fastnet, Middle Sea, Sydney–Hobart, Caribbean 600, and Cowes.
Hidden Shape11 archetypes meet five currents.
How each archetype responds when the ocean imposes its own geometry on the race.
What we sawInsights from RORC Caribbean 600.
Where current intelligence meets island-chain eddy structure — refreshed as the race delivers it.
For the first time, FleetEdge reveals the current envelope behind flagship IRC offshore results. At Fastnet and Rolex Middle Sea, a fleet doesn't race against the fleet alone — it races against the tidal gate and the boundary current. Ocean Intelligence makes that layer visible.
Each of the five tidal-dependent flagships has its own signature. The Sydney–Hobart fleet threads the East Australian Current boundary; the RORC Caribbean 600 navigates the island-chain eddy field around Antigua, Guadeloupe, and Saba; and every Cowes start is timed against the Solent's 12.4-hour semidiurnal cycle. None of these are the same race twice. FleetEdge now resolves that difference.
This is response, not fit. Ocean Intelligence overlays HYCOM ocean-current state onto the leg-centroid and venue-bounding-box geometry of each flagship race, letting you see how each archetype behaved under the current regime that actually occurred. It is not a predictive classifier — that work belongs to the unified classifier lane — but an observational record that separates current exposure from design, crew, and weather.
The coverage is deliberately flagship-scoped at launch. Cowes, Fastnet, Rolex Middle Sea, Sydney–Hobart, and RORC Caribbean 600 are the IRC events where current is a first-order variable, not a rounding error. Broader OC enrichment follows as the residue sweep closes.
Five current and tidal dimensions.
Ocean enrichment adds five measurable dimensions to every boat racing on a flagship tidal course.
Race Current Regime
The dominant current structure for the race — tidal gate, boundary current, or eddy field.
Peak Current Exposure
Maximum HYCOM surface-current magnitude encountered on the boat's leg geometry.
Tidal-Gate Timing
Whether the boat caught favourable flow at the decisive gate, or paid the price.
Current-Wind Alignment
Co-flow versus counter-flow state — the sea-state and VMG-to-course modifier.
Archetype-Current Response
How each of the 11 design archetypes behaved under the observed current regime.
HYCOM GLBy 93.0 Reanalysis.
HYCOM GLBy 93.0 is the Hybrid Coordinate Ocean Model global reanalysis, produced at 1/12° horizontal resolution. Like atmospheric reanalysis, it is retrospectively computed against the full global ocean-observation network — producing a consistent, calibrated record of surface currents, temperature, and sea-surface height that forecasts cannot match for historical analysis.
FleetEdge samples HYCOM at race-leg centroids for flagship event registry editions covered by the canonical course-geometry registry, and at venue bounding boxes for all flagships in scope. The result is per-boat current exposure timed to actual race geometry — not a generic venue average.
Coverage posture, Phase 5.5b: Ocean Intelligence ships at launch for the five flagship tidal races above, with the operational floor running at approximately ten percent of corpus-wide observation coverage. The platform treats HYCOM enrichment as a flagship capability, not a corpus-retroactive sweep; broader coverage follows as the ocean-currents residue sweep closes and the ingestion lane stabilises. Provenance and maturity tier are disclosed on every surface that cites current-derived dimensions.
Five courses. Five current engines.
Each flagship has its own current signature. The HYCOM overlay resolves what the fleet's finishing order alone cannot.
HYCOM Fastnet Fastnet — the Needles-to-Plymouth tidal chain. The Fastnet course threads through some of the strongest coastal tidal flow in European racing: Hurst Narrows, Portland Bill, the Lizard, and the final run into Plymouth. Peak current exposure on this course routinely exceeds the boundary-current peaks of the Sydney–Hobart Strait crossing. Ocean Intelligence resolves which boats caught the gate and which rounded into counter-tide.
HYCOM Sydney–Hobart Rolex Sydney–Hobart — the East Australian Current boundary. The EAC is not a gate — it is a boundary current with eddy-shedding at scale. The race turns on whether a crew threads the favourable EAC axis southbound or hits its counter-current margin. HYCOM resolves that axis day by day at race-tier; the v1.1 release advances Sydney–Hobart to per-leg integrated PPI.
HYCOM Caribbean 600 RORC Caribbean 600 — island-chain eddy structure. The course weaves between Antigua, Guadeloupe, Saba, Tintamarre, and the Anegada Passage — every island shadow spawns an eddy field, and every channel has its own current profile. The race is less a single tidal gate than a serial eddy negotiation. Ocean Intelligence maps each boat's encounter with that field at race-tier; the v1.1 release advances RORC Caribbean 600 to per-leg integrated PPI.
HYCOM Middle Sea Race Rolex Middle Sea Race — the Messina reversal. The Strait of Messina is the single decisive current gate of the Middle Sea Race, and its flow direction reverses on the tidal cycle. A fleet that arrives on favourable flow beats a fleet that arrives on counter-flow by hours, not minutes. HYCOM timing resolves the gate state at race-tier; the v1.1 release advances Rolex Middle Sea Race to per-leg integrated PPI.
HYCOM Cowes Offshore Cowes Offshore — the Solent semidiurnal cycle. The Solent runs on a 12.4-hour semidiurnal tide with sharp peak ebbs and floods. Every Cowes start is timed against that clock; every weather mark rounds into one of its phases. Ocean Intelligence aligns each race's start-gun moment against the prevailing tidal state at race-tier; the v1.1 release advances Cowes Offshore to per-leg integrated PPI.
See Ocean Intelligence in the Fastnet fleet.
The Fastnet course runs some of the strongest tidal flow in European racing — see how the current engine meets the fleet's regime and rivalries.
Explore FastnetFive tidal races. One current engine.
Ocean Intelligence transforms flagship IRC results into calibrated, current-aware performance data.