The American drained a 24-foot birdie putt at the final hole to post just the 16th sub-60 round ever on the US PGA Tour. Seoul-born Kim is the 15th golfer to reach the magic number of 59 on the US tour. "To shoot 59 was pretty cool and feels like I'm part of the history books." He kept it going with a 13-foot birdie at 16 and drilled a 17-foot birdie putt at the par-three 17th. "I made a really nice birdie putt on 16.