Matman 1976 I hate to correct you but it has not always been that way when my oldest son who is now 25 wrestled kids the cut off was dec 31. So if you were 10 in 2010 you wrestle 10 and under. With my second son his birthday is in July not such a good birthday. Next year he will be 12 and under. So he may meet a boy who is 13 because his birthday is in sept. and he will be 11 by just a few weeks. So far it has not been so bad but next year it may be. To me there is a big difference between an 11 year old and a 13 year old. They start to mature in all kinds of ways. I think dec 31 is better.