Fastpitch speed

Question
Can you tell me the average pitch speed in girl's fastpitch softball?

Let's say at the U10 level and then the professional (Jenny Finch) level.  Thanks

Answer
Hello Michael

This would be typical average pitching speeds expected however there's always exceptions. For example I've seen 12U girls with pitching MPH speeds in the 60's

10-Under  Typical 37-41 MPH  Top Pitchers 43-46  
12-Under  Typical 44-47 MPH  Top Pitchers 50-53  
14-Under  Typical 46-49 MPH  Top Pitchers 52-55  
16-Under  Typical 50-53 MPH  Top Pitchers 54-57  
18-Under  Typical 53-56 MPH  Top Pitchers 58-61  
College  Typical 59-64 MPH  Top Pitchers 65-72