Andrew Chamber an 11 year old boy ran 1:23:16 which at the jax half marathon which is 6:21 per mile. Results posted here http://www.1stplacesports.com/marine15halfres.htm. He beat the age group record by 56 seconds. Age Group records here http://www.arrs.net/SA_HMar.htm. I did a quick search on him but couldn't find anything else. His potential is out of this world. Let me know what you think of this and say anything you know about him. You can read my other posts on this thread which is where I intially brought it up on page 2 http://www.letsrun.com/forum/flat_read.php?thread=6947593&page=1
Your kid ran a good race and you should be proud of him.
As far as his potential is concerned a 1:23 at his age does not suggest he will be running say a sub 1:04 at age 20 or whatever you consider to be out of this world. Sorry, it just doesn't.
I've known at least two kids within a few miles of where I live that cold have run faster than that for a half at that age. I know this because at least for one of them his father would take him on long runs with us and he had no trouble handling the pace. The 13 year old record is 1:18 on this list. I think back to when I was that age and I think I would have had a crack at that.
So, like I said be proud of what he did and encourage him but let's not get out of control.