13 year old

My velocity is not what other kids my age are throwing. Mine is usually about 60mph. I’m 5’8 and 145 lbs. Is my velocity normal for a 13 year old?

Yes, fairly normal. I’m assuming you’d like to increase that velocity.

A good resource would be
ericcressey.com
and
Here for mechanics analysis

yeh, your about average, if you would like to throw harder you should play long toss on a line, but if you have had growing pains, or if you do have them already, once those go away you should see an increase in velocity

I am now 14 going on 15. I am 5’11 and 155 lbs. I can touch 70 mph if I really rear back and throw. How normal is that? Above, below, or about average?

average i would say with 5’11