While this was the "official ballpark" for the Red Sox with more and more teams moving into Ban Johnson Park... there were no hard and fast rules. When there was no room at Ban Johnson, teams looking to work out would come here to train and play against the Red Sox and plenty of times, the Red Sox would find themselves in Ban Johnson Park.  In a nutshell ... this tiny facility served the Red Sox officially and Ban Johnson Field served the rest of the Major League offerings and when there was overflow... they overflowed here.