I randomly thought of one in my city and went to look for it. It was missing, at 28.5860615, -81.3010721 or at least the court doesn't come up if you type the ZIP code there into the search box.
The satellite image of this place on Google Maps is extremely obscured by the tree shadows, which may have deceived the recognition.
The labels come from OSM so it was probably done by somebody manually looking over Bing's aerial photography and manually tracing what they can see. The iD editor uses Bing not Google.
Those are some ICBM-level precisions bro. How many centimeters wide is your court?