I had one during covid.. the course i was playing did the "upside down" cup thing.. so it wasnt a full hole.. the hole was about 1/2, maybe 3/4 inch deep.. so you didnt have to reach into the hole.. my ball hit the green.. rolled right at the hole.. you could see it sort of go into the "hole" but since it was only a shallow covid hole, it didnt go down.. finished maybe 4 inches past.. would it have gone in w/ a conventional hole? who knows!! so i tell people ive had 1.5 holes in one.. im in it for the good story i guess!