Too many Polo threads!

Yeah keeping score is vital. In almost every game someone on the court asks the crowd what the score is.
Refs are needed for this.

It's not hard, there are/will be a hard-core few that always show up to play/watch. these people should be refs. Only one of them needs to be present on the league game day/s.

and sometimes the crowd has to ask the court... refs should be there, if only for score keeping purposes