New Delhi, July 12 -- EVIAN-LES-BAINS - Haeran Ryu tapped in the birdie on the 18th green and turned to her caddie. "I was shocked," she said later. The scorecard said 60. No one in the history of major championship golf, across any tour or any era, had reached that number before Saturday. Ryu had.

The 60 came from nine birdies and one eagle over 18 holes at Evian Resort Golf Club, a par-71 course set above the waters of Lake Geneva in the French Alps. Ryu played the front nine in 29, equaling the best nine-hole score in the course's history. The eagle at the sixth hole, where she holed out from the fairway, moved her into the co-lead. Eight more birdies across the remaining 12 holes extended what had already become the most discussed ro...