Ball hits a tree

[MD Longhorn]

Originally Posted by BretMan

I told him that there's no such thing as a "ground rule single".

Not true

A ground rule can't supersede a book rule.

Correct, but ground rules are there to provide guidance when something happens that is not in the rulebook but is possibly common because of a quirk at the GROUNDS at which you are playing.

The book rule is that if a fair batted ball becomes dead and unplayable it's a two-base award. That's what we went with...it never came into play.

A) To which book rule do you refer (there are several similar ... wondering which you're meaning here)...
B) how would hitting a wire suspended above cause it to become dead... OR unplayable?

Seems to me a wire across a field is EXACTLY the kind of situation that needs to be addressed by a ground rule.