60
Pitching a fast ball at 69 mph will not harm a 13 year old. A 13 year old should not be allowed to pitch a curve ball or any other pitch that may hurt his pitching arm. Curve balls should never be pitched by any boy under the age of 16.
Good time for average 16 year old boy: 12.5s Average time for average 16 year old boy: 13s Average time for a good 16 year old boy: 11.5s Good time for a good 16 year old boy 11s
A little quicker than average, but not really "fast." With proper training and ability though, the athlete could develop into a very fast sprinter.
A 14 year old boy can bulk fast by eating well balanced diet full of proteins.
The answer depends on the boy's age.
why do you ask
Yes, a pitching speed of 70 miles per hour is considered fast for a 12-year-old boy. It is above average for his age group and demonstrates good arm strength and pitching skill.
an average nine year old boy's weight is about 75 to 90 pounds
the average size for a 10 year old boy 4'7 is 19-21 inches
that's freaky fast
10.5kg