Good Question - I would like to see an answer to your question.
If you don't get a response from an attorney in this forum,
you might contact the sports department of one of your
local newspapers. Newspapers may fall under the category
of "fair use" or some other exception; whereas, you may not.
I know the movie industry frowns on taking pictures and
recordings of movies in movie theatres; however, a movie
is copyrightable, and I am not sure a sports event is
copyrightable.
A similar, but much broader question, was asked by CHRISPR
on 08/21/2001; however, the answer pertained only to
taking pictures of copyrighted material such as movies.
