Cantlay just about (?) managed to crack a smile after he drained his tee shot at Harbour Town Golf Links.
The scene? The seventh hole. From 200 yards, Cantlay struck a towering iron shot with a gentle fade and it never left the pin.
Once it landed, his Titleist Pro V1x dribbled ever so slowly towards the centre of the cup and in. Boom.
Cantlay took to his Instagram to mock himself. "Playing faster," he captioned his post.
Watch the ace here:
Cantlay was having a bit of an up-and-down day at the designated event.
He started on the back nine and turned in 3-under 32 after notching five birdies and two bogeys.
Four consecutive pars followed before he picked up another stroke at the fifth hole. He made par at the sixth.
At the seventh, he took his score from 4-under to 6-under with the ace and eventually signed for a 6-under 65.
As for Cantlay, he has been in the news after he was accused of playing too slowly at The Masters.
He was even trolled by Monty of all people!
Though it has to be said, he was filmed leading his group on the second day at Hilton Head:
Cantlay, 31, is looking to secure his ninth PGA Tour title. His last victory came at the 2022 BMW Championship.