What bodyfat percentage is optimal for peak athletic performance?

what sport do you guys train? just curious.

 

I use to run track and play basketball competitively for over 10 years. I also boxed at the Peacocks, West Ham TKO and Fort Galaxy ABA's although i never went as far as getting my card.
Personally i train for pleasure now as il never be competitive at anything now as im too old and too riddled with bad injurys. But i adjust my training to accommodate for my injurys and continue to train with weights as that's what i like to do.