But his experience on the back nine at Bellerive was different, in part because of storms that took him off the course in the middle of his second round Friday and brought him back for a 7 a.m. restart Saturday. In all, the 42-year-old Woods put his surgically repaired back through 29 holes over 10 hours in hot, sticky weather. He not only changed shirts this time, he changed colors — from a gray-and-white striped design early in the round to royal blue from the fifth hole on.