Thread: Gray Area Strikes
View Single Post
  #54 (permalink)  
Old Sun Jan 04, 2009, 11:53pm
dash_riprock dash_riprock is offline
Official Forum Member
  
Join Date: Dec 2007
Location: NY
Posts: 1,428
The rule says the ball must be 9-9.25 inches in circumference. 9-9.25/π = a diameter of approximately 2.86-2.94 inches.
Reply With Quote