SWEDEN'S Oscar Floren was unable to hold on to his lead as the Irish Open resumed in windy conditions at Carton House today.
Floren carded a flawless six-under-par 66 late yesterday to claim a one-shot overnight lead ahead of former champion Shane Lowry, Michael Hoey, Joost Luiten, Peter Uihlein and France's Jean-Baptiste Gonnet.
And the 29-year-old, who has a best finish of 25th on the European Tour this season, was quickly back among the birdies in the second round, picking up shots on the first and fourth to improve to eight under par.
But Floren's first bogeys of the week on the fifth and sixth dropped him back to six under par and allowed Uihlein to move into the lead with birdies at the 13th and 15th.
Floren pulled a shot back when he birdied the par four 13th, but with Uihlein also finding another birdie the Swede remained two shots behind the American with four holes of his second round to go.
Dubliner Pádraig Harrington was in severe danger of missing the cut after four bogeys and two bogeys saw him drop to one over with four to play.
Graeme McDowell was also struggling and was at level par with four to play, just inside the projected cut.