This can be looked up at milesplit.com. The average 13 year old (8th grader, we'll say) running track will run around a 2:35-2:40. The winners will go sub 2:15. Under 2:00 minutes is a great feat for a high school runner and middle school kids running that are probably exceedingly rare. If we're talking the entire population (not just athletes) 3:45 or higher is a likely average.
I think it would be 2:50 through 3:30. Im 12 and I got 2:39
Average would be between 2.15 to 2.20
65sec
8 Foot 5 meters
He did not run the 800 as a 14 year old.
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
There is no real answer for that because many factors come into play. These being if you have trained or ran before and also if you have a natural ability to run.
The answer depends on the boy's age.
an average nine year old boy's weight is about 75 to 90 pounds
for a boy about 500-700$'s in a year and for a girl 800-900 $'s a year.
the average size for a 10 year old boy 4'7 is 19-21 inches
safely about 25meters