Here is a "for real" 60 plus 12u with an '02 birthday. Last I knew her one time high speed was mid 60's and it is my understanding that she hits 61-62 regularly in games. She is on a 14's team this year. She is 6'02" and has "for real" thrown in the 50's since the first time we saw her in 10's. When you see a 10 or 12u girl throwing that hard it is really, really obvious and it sorts the crazy claim parents from the real deal. I have seen some very hard throwing '02 pitchers this year and they when you watch them and compare them to this gal they aren't even in the same room.
My older dd is a first year 18 and despite parent claims, I gave not seen many 60 plus pitchers even at her age. If you listen to parents on this board and at the park, 60 plus pitchers are everywhere but when you see it you know it. IMHO, if you are standing there watching a pitcher, wondering if the gal really throws 60, she probably isn't...
https://app.nsr-inc.com/prospectResume/pProspectResume.aspx?id=193724
https://m.youtube.com/watch?v=bNR-gq-cz2Y
Found it interesting that the "scout" from NSR considers her mechanics "flawless".