The practice facilities at Oak Hill opened after frost on Thursday delayed the start of the 105th PGA Championship by an hour and 50 minutes.
American Shawn Mitchell, who won the shock PGA crown at Oak Hill in 2003, is now set to hit the opening tee shot at 8:50am (1250 GMT), PGA of America officials said.
Fog and frost greeted the players and closed all practice fields and the course.
The Masters champion, along with world number one Jon Rahm of Spain, US Open champion Matthew Fitzpatrick of England and British Open champion Cameron Smith of Australia were set for a revised start time of 10:23 am from the 10th tee.
Freezing conditions were expected to rain throughout the weekend of the event, which was initially due to take place in August before the PGA of America moved it to its current date.
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