How many 5 year olds

When I first saw this question I became very curious How many 5 year olds I could fight. Here are the conditions of the fight:

* You are in an enclosed area roughly the size of a basketball court
* There are no weapons or foreign objects
* Everyone is wearing a cup (so no kicks to the groin)
* The children are merciless and will show no fear
* If a child is knocked unconscious, he is "out." The same goes for you.

So Before you take this quiz think to yourself, How many 5 year olds could you fight?


Here is my score:
33