Oscar Floren of Sweden found some unexpected form to lead The Irish Open by one one shot after the first round at Carton House Golf Club, at Kildare Ireland. Oscar Floren / Getty Images Oscar fired in his best round of the season, -6 under par, 66, to top the leaderboard at The Irish Open on day one of the tournament. Previously this season Oscar has not finished above 25th place in a European Tour event, but carded a bogey free round that included four birdies and an Eagle. The eagle came at the par four 13th, where Oscar holed out in two shots. Oscar was pleased with his performance; "I played great today, It was nice to get off good start today. I hit a lot of fairways, a lot of greens, and eventually a few putts are going to drop. Mentally I’ve changed a bit and put in the work, doing the smart things every day. After March/April I changed things and it’s been paying off. I’ve been in form the last few weeks, I finished well in Germany but I played well in St Omer and Austria the first two rounds as well." Hot on Oscar's heels are a posse of five players on -5 under par, led by Irish favorite Shane Lowery. Shane is joined in second place by, Michael Hoey, Joost Luiten, Peter Uihlein and Jean-Baptiste Gonnet. Shane Lowery owns a house on the course, but has banned his family, he shares it with Graeme Storm and Oliver Fisher during the tournament; "Family are banned from the house until Sunday afternoon. I always hang out with Graeme Storm and Oliver Fisher and when the tournament was announced I said they could stay with me. I'm trying to keep my routine as normal as possible this week. It would seem like there should be more pressure on me this week, but I'm looking at it as an advantage. I play this course week-in, week-out and know it like the back of my hand. I went to Baltray just happy to be there and would have been happy going home with four rounds under my belt, but obviously I came away with a lot more than that. This week and 2009 is like chalk and cheese. You can say I'm coming here trying to win the tournament but I'm trying not to talk too much about it." Lost Rory McIlroy / Getty Images Rory McIlroy shot a +2 over par, 74 in the first round of The Irish Open, and admitted that he felt lost out on the course; " At the moment, no aspects of my game are strong and I’m just feeling a bit lost at the moment. It feels good on the range and I can hit all the shots but when I get out on the course it really does not seem to be there. Off the tee, I am missing one right and then missing one left and it’s just not going where I want it. It puts you in two minds every time you are playing a tee shot. The game is just not coming easy to me at the moment and while I was struggling at this point last year, I was able to turn the corner in the middle of the summer and have a great end to my season. I don’t know whether it’s a matter of trying to play my way out of it or just keep grinding away on the range or whatever."