 Billy Horschel is the leader of the Open through three rounds in Scotland. He shot a 69 today and sits four shots under par. Six golfers are tied for second at three shots under, including Sam Burns, Thurston Lawrence, Russell Henley, Xander Shoffley, Justin Rose, and Daniel Brown. World No. 1 Scotty Scheffler is alone in eighth place and is two shots off the lead. The final round of the Open at Troon in Scotland will get underway about 10.30 a.m. Eastern. Horschel has never won a major in his career.