In a testing opening day on Dublin Bay, winds blew to 20–knots from 270 to 290 degrees.
Kelly took the first two races in comfort but the Royal Irish Yacht Club's Andrew Craig sailing Chimaera won the last windward–leeward race of the day to put him second overall. Craig's clubmate Richard Goodbody lies third on the same eight points.
The record–breaking championship fleet included two UK entries Nigel Ingram's Just Jay from Holyhead Sailing Club and regular ISORA visitor Roger Smith's Wakey Wakey in seventh and ninth place respectively.
Full results are here.
Gallery of images from the J109 Nationals 2017 are here