Originally Posted by JavierLW
They dont have alleys. Probably because the net posts are not removable and there was no need.
I think they realized if they wanted to put in 7 courts, they were going to run out of room in the first place so they decided to make two of the courts like that to save space. (they needed 7 courts for HS tennis)
Sorry, mis-read your post. I thought it says they have alleys. My bad.