PGA: Arnold Palmer Invitational presented by Mastercard - Third Round

Tyrrell Hatton hits a bunker shot on the 17th hole during the third round of the Arnold Palmer Invitational golf tournament at Bay Hill Club & Lodge in Orlando, Fla., on Saturday.

Tyrrell Hatton survived brutal conditions to eke out a two-stroke lead over former champions Rory McIlroy and Marc Leishman in the third round at the Arnold Palmer Invitational in Florida on Saturday.

On a day when a proverbial U.S. Open broke out and Brooks Koepka shot the highest score of his PGA Tour career, Hatton sank an unlikely 30-foot birdie at the par-four 18th to shoot one-over-par 73 and open a handy buffer over his rivals at Bay Hill in Orlando.

In search of his first PGA Tour victory to add to four wins on the European Tour, the Englishman is at 6-under 210 with one round left.

Northern Irishman McIlroy (73), who bogeyed the last after firing his second shot into rocks, and Australian Leishman (72) are tied for second at 4-under.

South African Christiaan Bezuidenhout, South Korean Im Sung-jae, New Zealander Danny Lee and American Harris English are three strokes behind.

South Korean Sung Kang, who shared the halfway lead with Hatton, triple-bogeyed the final hole after pulling his drive out-of-bounds. He previously had also tripled the 11th hole, shot 78 and fell five behind.

Kang was not the only player to run up a big number on a day of carnage as strong winds, rock-hard greens and thick rough conspired to prevent anyone from breaking 70 at the event for the first time in 40 years.

“It felt like a U.S. Open out there. It’s a nice change from the norm,” said McIlroy, referring to the major championship which is often the toughest test of the year.

Leishman could hardly believe he had not broken par.

“I added my score up and did a double-take,” he said. “It added up to 72 (but) felt like a 65. Par was a great score. I like it when you have to play really well to shoot even par.”

Of the leading eight players, only McIlroy, Leishman and Bezuidenhout avoided a double-bogey or worse on a day when a few bogeys were pretty much unavoidable.

Even Hatton had a double, at the par-four ninth, while Lee doubled the 18th, and only then by sinking a 20-foot putt.

McIlroy predicted it would be a similarly stern test on Sunday, when the winds again are forecast to blow.

“Tomorrow it’s all about keeping the big numbers off your card and playing as conservatively as possible,” he said.

“I’m pretty confident in my game. I was pretty good off the tee today.”

American Koepka, the man McIlroy recently displaced as number one in the world rankings, shot 81, which was nevertheless better than three others.

Max Homa was the only player to break par, shooting a 70 that included a double-bogey at the last. He trailed Hatton by seven shots.