Japan's Hideto Tanihara dropped out of contention with three bogeys in the final 11 holes at the Irish Open Sunday, finishing tied for 10th with a 15-under 273 total.Spain's Jon Rahm overcame steady rain to shoot his second 65 at Portstewart Golf Club to win by six strokes, finishing 24-under-par. It was the 22-year-old's first victory on the European Tour.Tanihara, who entered the final round two shots off the lead, struggled to find his rhythm on the greens, leaving birdie putts short of the cup at Nos. 1, 5 and 11. He was unable to shoot under the card for the first time this week, finis…READ FULL ARTICLE