We just returned from ASMu on Sunday, and it was not very crowded. I would assume Sports would be similar. The pools got crowded in the late afternoon/evening, but the food courts seemed very managable every time we went. Also, we checked in at 9:00 am, and much to my surprise, they had a room ready! That has never happened to us before! I would be surprised if you could get 12 rooms that early, but you never know! Have a great trip!