The fastest pitch ever thrown by a 12 year old that was recorded was Zach Ours, who threw 78 MPH.
The fastest pitch ever thrown clocked officially was 78 MPH.
Nick O'Dell-86 mph
Sadly no one has ever kept record for this
The fastest officially clocked pitch was by Brian Jarrell at 72 MPH.
My brother is six and he throws 35-37mph
In September 2010, 22 year old Aroldis Chapman of the Cincinnati Reds threw the fastest pitch on record against the San Diego Padres, the pitch was clocked at 105 mph.
125 mph by Ug U thannik, a Cro Magnon child aiming at his supper!!
This isn't an officially-kept statistic anywhere - you're onmly going to get heresay and conjecture asking that here.
The fastest ever recored softball pitch is 95. By a 18 year old in Texas!!
The fastest Little league pitch was 90 MPH. A twelve year old by threw this pitch. His name is Tanner Beebe.