Mayson Levandoski 24:06 10-20-12 official chip time.
Bailey my daughter ran a 5k at the age of 6 in 29:42 at the Got Friends 5k in Clemmons, NC.
The fastest time ever ran by an 11 year old girl was 5:43, by Mackenzie Gray. I do not know how you prove who has the fastest time. However, in Arcata Califorinia Chloe Pigg ran a 5:39 plus at Humboldt State University on 4/4/09. Six Rivers Running club has the the recorded time. She is 11 years old.
Chris Everts of SWFl ran the worlds fastest 5k with a time of 13:17 back in nov. 12, 2008
The fastest 5K for a 12-year-old girl is 16:17, according to the No Excuses 5K. (14:52 for 12-year-old boys.)
24:06 by Mayson Levandoski. RUN THRU THE RAPIDS 10-20-12 Official chip time . Not even close. Braden Griffin ran the Tulip Time 5K in 2013 with an official chip time of 21:01! see link: http://results.active.com/events/tulip-time-run--7/5k-run-walk/braden-griffin
According to the No Excuses 5K race, 14:51 for females and 13:11 for males.
Justin DeMatto ran it in 12:53.89 in 2007 at a meet against Allen vs whitehall!
Cameron Everts of Kempner, TX ran 6:05 at the toughest 1 mile in Texas on 7/10/10 . He was only 8 years old!! http://results.active.com/pages/searchform.jsp?rsID=96081&orgID=216392
The 11 year old's name is Omar, and he ran the 100m race in 11.34 seconds.
There is a 7 year old girl in New Jersey that ran 23:22 in Dec-2011on an indoor track (unconfirmed). The fastest current time on a USATF Certified Road Course is 22:30 on 11/26/15 in Manahawkin, NJ. This was the Gobble Wobble 5k. This is a NJ record only for female runners that are 7 years old. The same girl holds the 6 year old female record too, running in 23:44 at the Lacey Elks Run for the Heroes on 3/28/15 (also a certified USATF course).
The fastest time recorded for the race.
The fastest 5 kilometer run by a 12 year old is 16:17 for a female and 14:52 for a male, according to the "No Excuses" 5 km Run website.