PORTRUSH, Northern Ireland >> The question Scottie Scheffler was asking of himself at the start of the week could very well be posed to those chasing him in the British Open.

What’s the point?

Scheffler delivered another example Saturday at Royal Portrush why he has dominated golf the last three years. He was the only player in the last eight groups not to make a bogey on his way to a 4-under 67 that allowed him to open a four-shot lead as he goes for the third leg of the career Grand Slam.

Scheffler has won the last 10 times he has led after 54 holes. It’s never easy, no matter how he makes it look. But on this gorgeous day he was in full command of his game, and now is in prime position to win his second major of the year.

He was helped by a 6-iron to 10 feet for eagle on the par-5 seventh, and saved by three big par saves, two on the back nine, to keep everyone at a distance.

“Talking of execution, he’s probably the best in the business right now,” Rory McIlroy said after a 5-under 66 that brought him to only within six shots of Scheffler.

Scheffler had the golf world buzzing earlier this week when he said celebrations don’t last but a few minutes. He loves the competition. He loves the work. But in terms of fulfillment, he often questions why he wants to win so badly when the thrill of winning is fleeting.

Ahead of him is competition, and still plenty of work.

He was at 14-under 199, four shots ahead of Li Haotong of China, who delivered his own mystery by saying he had no idea how he recovered from the full swing yips a few years ago to be in the final group of a major for the first time.

Another shot back was Matt Fitzpatrick, who was tied with Scheffler through six holes and couldn’t stay with him when the No. 1 player began to pull away. Fitzpatrick missed a pair of short par putts and had to settle for a 71.

The biggest roars belonged to McIlroy, so much that it felt as though all of Northern Ireland was behind him. There wasn’t an inch of grass or gorse to be seen beyond the wall of people lining the fairways. There were 30-yard gaps along the ropes for Scheffler.

McIlroy opened with three birdies in four holes. The roar that shook Royal Portrush came on the par-5 12th when McIlroy holed a 55-foot eagle putt that gave him a spark and the gallery hope — even though he still was six behind.