Too Late.
The prison I work at has 5 dorms.Each dorm has its own Full sized out door cement Basket ball court. the Cell Block has two Courts that are spilt into half court (ie. 4 courts) and the compund has one indoor lamanated wood floor court that all the dorms share.

Edit:

and a full sized baseball field and on the out side edges of the baseball field theres a football field and two volleyball courts