Byeong Hun An's fourth round at the PGA Championship was already off to a good start when he stepped to the par-3 11th tee-box.
It got better, though, when An hit the shot of the tournament on the short par-3.
The ace was An's first of his career and the first of the 2020 PGA Championship. With the hole-in-one, An moved to five under for the round and three under for the tournament.
An, 28, is looking for his best PGA Championship finish since 2017, when he finished tied for 28.