 Scotty Scheffler, part of a four-way tie for six. He is at minus three and one under for his round today. Sam Burns, a big mover. He's minus six for his round, about to wrap it up, also at minus three. So too is Thurston Lawrence, minus six for his round and minus three overall. Siwoo Kim aced the 238-yard par 3 17th, the longest hole-in-one in the history of the Open.