With a clear lead of 27.1 points, defending ISORA champions Peter Dunlop and Vicky Cox in the J109 Mojito look set to retain their title in tomorrow's final race of the season.
Royal St. George's J122 Aurelia skippered by Chris Power–Smith can still topple them but it will take some doing.
15 starters are expected for the Pwllheli to Dun Laoghaire race where the season-long outcome for the Wolfs Head Trophy will be settled.
See race documents downloadable below.