How long should it take a 10 year old girl to run a mile?

My son is 9 today and his school just did the President's fitness challenge mile and he ran the mile in 7:29. I printed out the averages for the President's Fitness Challenge and this is what those averages say: to be in the 85th percentile a ten year old boy would run the mile in 7:57. A ten year old girl to run in the 85th percentile would run the mile in 9:19. I did not print out the criteria to be in the 50th percentile but to find this information I did a search for President's Fitness Challenge, elementary school.

My 10 year old girl runs a 6:17 mile. She trains 2-4 miles a day 6 days a week for 6 months. I've seen other girls that age run 5:59

• to 6:10 Hard to believe , but true. Watch the USATF and AAU

track.