The 18th hole on the Blue Course at the Doral Resort in Florida - the one where Craig Parry holed his second shot with a 6-iron to win the Ford Championship earlier this year, has been named the toughest on the PGA Tour.
The 467-yarder - a par-4 according to the scorecard - had an average during the tournament of 4.48, accounting for 125 bogeys, 53 double bogeys and four 'others'.
The 11th hole at Royal Troon - nicknamed The Railway because of the tracks that run parallel with it from tee to green - was fifth toughest on Tour with an average score of 4.413.
It attracted 108 bogeys and 38 doubles during the four days of the championship but American Todd Hamilton secured one of only 35 birdies there during his surge towards the Claret Jug on the final day.
My own trawl through the thousands of holes I've played turns up a number of nightmares - most recently being the par-3 8th at Sandy Lodge near London. It's barely 100 yards long but tucked behind bushes, surrounded by bunkers. A severe slope on the green adds to its degree of difficulty.
At the club where I play most regularly - Greetham Valley in Rutland - the 17th on the Valley course still provides the toughest obstacle.
It's less than 400 yards in length but from a high tee, the fairway is 80 feet below and demands your drive finding the narrowest of targets - with a lateral hazard and out of bounds to the right and thick woodland on the left. The approach must avoid a deep bunker and more water.
In my opinion, among the toughest holes in Ireland is the 18th at Druids Glen, while one of Scotland's most hazardous is the 17th at Carnoustie. As for Wales, the uphill 18th at The Celtic Manor is surely one of the most demanding.
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