The grass is a wide variety...on the last 1000' (17), it has a lot of coastal Bermuda. The first 1000' is rye, weeds, and broad leaf grass. The middle 1000' is rye, tall fescue, and broad leaf grass plus various weeds.
The north end slopes a bit, so does not retain enough moisture to support Bermuda. The very south end is relatively flat, holds moisture well, thus the Bermuda that is doing well on that end.
It looks awesome when mowed...I will go to some trouble, see if we can post a photo or two.