Koepka didn’t make a birdie until his final hole on the tougher South course for a 1-over 73 and was happy to get that first round behind him. While the North course is easier, his game was sharp. Seamus Power had the low score at 65 on the South course, which has hosted two U.S. “North Course clearly is one that you want to try to make the most of and it’s great to do that today for sure,” Rose said. “But I only hit three fairways, and the North course also is hard from the rough.