Nelly Korda's efforts to win her third career major and 14th LPGA Tour event were all but dashed early into her opening round of the U.S. Women's Open, as the no. 1 golfer in the world suffered through a 10 on the par-3 12th at Lancaster Country Club.

Korda, starting on the back nine, began her Open inauspiciously, with a bogey on the par-4 10th. Following a par on No. 11, she stepped up to 161-yard 12th, a windy, downhill tee shot onto a green that slopes severely from back to front, right towards a creek.

“The par-3 over the water, from the tee box, you can’t see how sloped of a green that is, but then once you get onto that green, you’re like, oh, my gosh, you’re coming in with a 6-iron,” Korda ominously said Wednesday about the 12th hole.

“If you’re long, in a sense, you’re kind of screwed. If you’re short, you’re screwed too.”

At her first crack at the hole in the third major of the year, Korda placed her tee shot in the back bunker, prompting a tricky chip towards the hole location in the front of the green. Sure enough, Korda overheated the chip, sending it into the water.

After a drop penalty, her shot from the fairway — a misguided bump-and-run attempt – also found the creek. Korda then put her sixth shot into the water.

Finally, her eighth shot landed near the pin, but she missed the putt. She ultimately holed out for a shocking 10 — the highest single-hole score of the LPGA superstar's career, per The Athletic.

The series of blunders put Korda at 8-over through three holes. Korda registered five more bogeys and two birdies in her first round. Her 80 tied her worst round on the LPGA Tour.

“Just a bad day at the office,” Korda said afterward.

Korda is currently +10, tied for 138th, 12 shots behind leader Yuka Saso (-2).

Korda, 25, has won a remarkable six of her last seven starts on the LPGA Tour, including the first major of 2024, the Chevron Championship — at the time her fifth straight win.

The lesson, as always: Golf is hard. Even for the best of the best.