Henrik Stenson saw his one-shot lead go up in flames following a poor club selection at the Deutsche Bank Championship.
The Swede looked to be holding Rickie Fowler at arm's length as he closed in on what would have been his first title of 2015.
However, having watched Fowler hit a smooth six-iron into the par three 16th green, Stenson felt he needed to go at the ball with a higher club to get closer to the pin.
"I pulled the wrong club on 16," revealed the 39-year-old on pgatour.com.
"The wind is pretty firm up above the trees. I felt like I needed to go a bit harder with that seven-iron. Rickie hit a small six, and I ballooned it a little bit and into the wind and it was just stalling.
"And that's kind of a little bit my dilemma. It pops up a little bit and that was really the killer blow for the week."
Stenson would find a hazard short of the green. He could not recover after the double bogey five and would have to limp to yet another runner-up finish, his fourth since November 2014.
"It's in the right direction, for sure," said the nine-time European Tour winner of his string of second places.
"Always disappointing when you can't finish the job when you're in good position. But you have to take the positives."
Ryder Cup legend Paul McGinley has insisted golf will need to get used to a ‘new normal’ for some time to come.
Paul McGinley is taking part in the Paddy Power Golf Shootout, available to watch on Paddy Power’s YouTube channel from 12pm on Friday.
The United States captain believes the competition relies on energy from the crowd.
Scotland’s Connor Syme and Englishman Matthew Jordan were also part of the successful quintet.
The English Open has been revived as part of the new schedule.
Close House Golf Club, near Newcastle, will host the British Masters on July 22.
The event was last staged in 2002.
The tournament at Close House, scheduled to start on July 30, is set to be the first European Tour event since the coronavirus crisis halted action.
The world number one believes it would be the ‘right call’ to push the event back to 2021.
The exhibition match, against Phil Mickelson and Tom Brady, raised 20 million dollars.