I'm not of that age, but I was once and yes there are numerous categories for boxing competiton under that age.

I believe that at your age you would fall into a category which in Ireland is termed "Youth2"

In Ireland it's like this: Boy 1 (11YRS) bOY 2 bOY3 Boy 4 Youth 1 Youth2 Juniors, Under 19's, Under 21, Intermediate and then Senior.

There is a large crossover area in Juniors Under 21's Intermediate's and Senior boxing.