1) Ballpark guidelines 
In baseball, ground rules are special rules particular to each baseball park (grounds) in which the game is played. Unlike the well-defined playing field of most other sports, the playing area of a baseball field extends to an outfield fence in fair territory and the stadium seating in foul territory. The unique design of each ballpark, including ...[Baseball] People who have connections with the University of Oxford, England. See also :Category:People associated with the University of Cambridge. ...
Rules precise to a particular ballpark because of its unique features and where the usual baseball rules may be insufficient.