HAVEN, WIS. - It's hard to tell who has the tougher job trying to figure out Whistling Straits: professional golfers or meteorologists.
Call it a tossup.
One day after the course was soaked by nearly two inches of rain, a pea-soup fog right out of a Stephen King novel enveloped Herb Kohler's slice o' Ireland on Thursday morning, causing the start of the 92nd PGA Championship to be delayed 3 hours, 10 minutes.
Then there were the periods of scorching sun and sauna-like humidity -- quite unlike the sub-60-degree temperatures that greeted golfers in the first round of the 2004 PGA Championship at the Straits.
But if it's hard to predict the weather here, it's equally hard to predict the leaderboard.
"There's a lot of different flavor up there," said Jason Day, who is two scoops of Australian with a swirl of Texas. "I think [the course] brings in a lot of different games, too.
"Obviously, it's playing long, so you'll see a bunch of long hitters up there on the leaderboard, but you've still got to have a really good short game around here."
The marathon first round was suspended at 7:54 p.m. with 78 players -- the entire afternoon wave -- still out on the course and Bubba Watson and Italy's Francesco Molinari sharing the clubhouse lead. Both shot 4-under-par 68s.