On the other hand, this ball is very definitely in the confines of the cup ... the putting green.” We enlisted the help of Thomas Pagel, the USGA’s Senior Director of the Rules of Golf ...

Indoor putting greens with golf ball returns let you practice as much as you’dd like and not worry about going to retrieve the putt from the cup — the ball return takes care of that.

Tour pros sometimes say it when they’re on a putting ... On the golf course, it should be easy, especially when it comes to deciding whether your ball would have dropped in the cup.