Of considerable parallel interest will be the way those who later this month represent their countries in the Admiral's Cup shape up against each other, though by then there will have been much mixing and matching of crews to other boats.
Leading the British charge in both is Mike Golding's Group 4, with Glyn Charles as inshore helmsman. They are up against the likes of American Jim Brady, who is doing a similar double act.
There is an entry from 14 countries today with a strong German contingent. The series continues with a 24-hour offshore race starting tomorrow, three more windward/leeward skirmishes on Tuesday, concluding with a round the buoys race on Wednesday.