ST. ANDREWS, Scotland — The grand pursuit of Jordan Spieth, redemption for Dustin Johnson, the mystery that has become Tiger Woods. It all came to a momentary halt Friday in the gloaming of St. Andrews when Tom Watson said goodbye to the British Open. Watson, the most prolific winner of golf's oldest championship in the last century, finished his 129th round with lights from the Royal & Ancient clubhouse illuminating the 18th green.