By Thomas Bristow Viktor Hovland lost his head on the 15th at Augusta National to throw away his chance of playing Saturday in the Masters. After working his way into a good position on the green, the Norwegian had a putt for par to stay at 6-over. His effort up the slope, however, agonisingly lipped out leaving a small tap-in for bogey. Approaching the putt in a relaxed manner, Hovland casually hit the ball with one hand and saw it slip past the hole and back downhill. The 26-year-old composed himself, walked to the putt, used two hands this time, and sunk it for a double bogey. Frustrated, H…