Nick Dougherty, Alastair Forsyth and Thomas Levet all battled well to finish on 10 under on a day when strong winds and driving rain forced a five-hour delay in play at the County Louth course.
He was one shot ahead of Scotland's 1999 British Open champion Paul Lawrie, who was tied in another big group including Frenchmen Thomas Levet and Jean Van de Velde, the runner-up at Carnoustie in 1999.