Two a year. The first race was about a month ago (June 2nd), I am not sure when the blip appeared, but you can see the track is almost centered on the area it appeared.
Of course there are two towers (both I believe are showing 3G complete) within a mile. So I am not sure what really happend.
In fairness gr8mike01 presented the hypothesis, but at least I was having a similar thought...
Has anything shown up as accepted in Delaware this month?