Dublin Bay Sailing Club's (DBSC) Thursday night fleet raced in medium-strengthened westerly winds with plenty of shifts in the 17th race of the AIB Summer Series off Dun Laoghaire.
A two-boat turnout in Class Zero IRC saw the Royal Irish Kyran McStay's X-35 D-Tox take the gun by just under a minute on corrected time from clubmate Sean Lemass's Prima Forte, recently returned from Calves Week Regatta in Schull, West Cork.
Richard and Timothy Goodbody's J109 White Mischief won in DBSC's Class One IRC by almost one and a half minutes on corrected time from National Yacht Club sistership, Brian Hall's Something Else. Third was the overall series leader Colin Byrne's Royal Irish XP33 Bon Exemple.
Royal St. George's Brendan Foley, at the helm of the First8 Allig8r, won by nearly three minutes from overall leader and clubmate Lindsay Casey's J97 Windjammer. Third was Paul Keelan's HB31, Hazy Blues.
In ECHO Three, Michael Ryan's Saki beat Kevin Glynn's Grasshopper 2. Third was the McCormack's Wynward.
David Ryan's 1720 Big Bad Wolf was the Sportsboat class winner from Martin Ryan's Jambiya. Ian Simmington's HH George 5 was third in a 10-boat turnout.
A 12-boat turnout of the Flying Fifteen class was won by Brian O'Hare's Nimble from Philip Lawton's Puffling.
Ann Kirwan in Bandit won from Dave Meeke's Alias, with Michael Cutliffe's Ruffles third in the eight-boat Ruffian 23s.
A four-boat SB20 fleet saw Ger Dempsey win from Richard Hayes in Carpe Diem. Grzegorz Kalinecki was third.