What are you basing that on, your vitriole is pitiful and unsubstantiated. As long as you are going to be a jerk about it I am guessing our 5th grade team can beat your 6th team so why would we bring 7th graders when 5th graders would do the trick.
In the infamous words of Jack Nicholson our 7th graders would rather be out "birddogging chicks and banging beaver" over the Christmas break.
Strange thing to say about 12 year old boys... or in your case, 13 year olds.