Cork's Justin Slattery Retains ORC World Championship Title in Italy on Rán as Summer Storm Leads New Champions
15th May 2026 ORC
The ORC (Offshore Racing Congress) handicap system is a measurement-based rating rule used to create fair competition between sailing yachts of different designs. Rather than relying on performance data alone, ORC ratings are calculated from detailed measurements of each yacht’s hull shape, rig, sails and stability. These measurements generate a Velocity Prediction Program (VPP) model, which estimates how fast the boat should sail in various wind strengths and angles. Race results are then corrected using one of several scoring options, such as Time-on-Time or Time-on-Distance, aiming to reward crew performance rather than inherent design advantages.
In recent years, there has been exploration in Ireland toward broader adoption of the ORC system, particularly ORC International (ORCi) and ORC Club certificates.
Clubs on both east and south coasts have explored ORC as an alternative or complement to the IRC rating rule, which has traditionally dominated Irish handicap racing. In 2025, events such as the D2D Race and Calves Week trialled ORC scoring or dual-scoring with IRC to ease the transition.
The move is driven by a desire for transparency, international alignment and access to the robust technical framework that ORC offers. Some Irish sailors are asking for consistency with European events where ORC is already well established.