From the tee box, we could not see the cup. We knew I hit a pretty good ball but I expected that it would be a bit short. As we were walking back to our carts, the marshal drove up and asked if one of us was hitting a yellow ball. I said that I was and he said "It went into the hole." We replied that "You wouldn't be kidding about something like that would you?" "No" he said, "You got a Hole in One." Thank You!