If you are not 100% sure about a Call

If you are not 100% sure about a Call

Q. Knowing that the ball must touch the line to be in (per usta rules), and knowing the ball is a sphere, AND knowing that the point of contact of a sphere with a plane is a point and that the point of contact will be the vertical centerline radius, does the standard club player call a ball “in” based on it being physically half in or out based on it being physically half out or do we consider the margin of error 1% /-lean. Players at my club have very good eyes and seem to call a lot of balls based on this super-hero ability. Should we consider compression, elasticity and angular momentum? What is fair?

A. If you are not 100% sure about a call, then give your opponent the benefit of doubt. That is The Code for our sport. I’m not sure that I completely understood the rest of your question/thesis… Frankly, the vast majority of shots do not land all that close to the lines.