The leaders at the US PGA Championship were facing 36 holes on Sunday after heavy rain and the threat of thunderstorms meant they could not get their rounds under way on day three.
Robert Streb and Jimmy Walker were due to tee-off and 2.55pm but the threat of thunderstorms saw play suspended at 2.14pm and the players were not able to return to the course at Baltusrol Golf Club.
The final five groups now face the prospect of playing their third and fourth rounds on the scheduled final day with the restart at 7.00am, but with a similar forecast set for New Jersey on Sunday, the prospect of a fifth day was looming large over the season's fourth Major Championship.
The final round was set to get under way at 8.40am at nine minute intervals in the same pairings as round three.
"I would like to say how obviously disappointed we are with not being able to complete or even resume play for today," said Kerry Haigh, the PGA of America's Championships Officer. "We had the three cells of dangerous weather. We suspended when the first one came. The second two were only 30, 35 miles to our south, southwest. The forecast was for them to move through, and there was some clear skies behind them.
"Once the second cell and third cells went through and dissipated and it was safe then the rain came down a lot heavier and caused the golf course to have standing water and become unplayable. Even if it had stopped, we wouldn't have been able to get the course playable.
"Our intent, based on a clear window in the forecast and had things gone the way we had hoped, was that we would be able to play some golf later this evening.
"Unfortunately that did not happen so consequently we have rescheduled as the statement says."
Streb and Walker were both at nine under after matching the 36-hole record of 131 strokes at the US PGA Championship, with World Number One Jason Day and Argentina's Emiliano Grillo two shots further back.
The all European Tour pairing of Open Championship winner Henrik Stenson and 2010 champion Martin Kaymer were also not able to get under way, with Stenson at six under and Kaymer a further shot back.
American Kevin Kisner was able to get his round finished and he set the clubhouse target at five under after an excellent 65, a score matched by 2008 champion Padraig Harrington who was a further shot back.
The Irishman was bogey-free with gains on the fifth, sixth, 12th, 14th and last, and he felt the soft conditions meant there were scores to be had over the weekend.
"There was definitely a score on the golf course," he said. "I probably made the most of the round today. I played average but made the most of it, took my chances. I hit the right shots at the right time and any of the shots that I didn't hit well didn't do me any harm. So it was one of those days.
It's nice when you score better than you play - Padraig Harrington
Russell Knox tapped in his 67th shot of the day moments before the horn sounded to sit at three under, a shot clear of Charl Schwartzel and birthday boy Justin Rose who both signed for rounds of 66.
Francesco Molinari was then at one under after a remarkable 69 that saw him finish with six consecutive birdies.
