Lupe wrote:What is the difference between the ball used in NCAA and international Softball? I am preparing for upcoming international tournament and i need this info so i can practice with the right equipment. Thanks
On our (this) website, go to the Rules & Standards section, and then choose Playing Rules, and then Slow/Fast/Modified. It will open a PDF document containing our 2010-2013 rules. On PDF page 71 there is Appendix 4: BALL STANDARDS
This will help answer your question.
(FYI, for world championship fast pitch play, the ISF uses the Mizuno 150 yellow optic.)
The specs should be no different from the NCAA except the thread height and texture of the covering may feel different.