Shane Lowry, a former British Open champion, is making his debut at the Tour Championship, starting at 3-under par and seven shots behind the leader. Despite his experience in casual money games, he acknowledges the challenge posed by top competitors like Scottie Scheffler and Rory McIlroy. The East Lake golf course has undergone significant changes, which have surprised many players, including Justin Thomas, who expected only minor adjustments. The restoration, based on 1949 designs, has led to issues, particularly with the par-5 18th hole, prompting PGA Tour officials to declare shots landing on the adjacent 10th fairway out of bounds. This decision aims to ensure the course is played as intended and addresses safety concerns. Players suggest a fair evaluation of the course's new layout will take a couple of years.