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			Rule supplement 34-J.  While in the circle and in possession of the ball, any act by the pitcher that, in the umpires judgement, causes the runner to react is considered a play. 
 
The pitcher doesnt even need to raise her hand, if she turns sharply toward the runner, makes an agressive step toward them etc and the runner reacts, it is a play.  Holding the ball up like they are going to throw is most certainly an attempt to make a play and freeze the runners.
		 
		
		
		
		
		
		
		
		
	
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