I have a question. I am coaching Little League again this year and i am wondering about my boy.
He has what I think is an amazing arm and I recently clocked him throwing 50mph. He is ten years old.

Does anyone know what is very good (speed) for a ten year old? Is 50mph just average, better than average, good, or great?

Oh and BTW: Yes I do stress strikes. This is just something I am wondering about.