World No 1 amateur golfer Lydia Ko's challenge to become the youngest major champion in history will have to wait.
The first day of play at the Evian Championship, the year's fifth major, was washed out after heavy rain soaked the newly-designed course today.
Players were on course for less than an hour before being forced to come off and the organisers decided to restart the round on Friday with Thursday's scores annulled.
"We've had nearly four inches of rain since Saturday and the golf course is extremely saturated at this point,'' said Heather Daly-Donofrio, the LPGA's senior vice president of tour operations.
"It was clear when competitors were out this morning that conditions weren't conducive to a fair and equitable competition. So the plan is to scratch those scores from today and have all players restart the first round tomorrow.''