That is what is reported in this story in MyStateline.com:
McHenry County Fair says ticket sales for Ted Nugent concert ‘unprecedented’MyStateline.comWOODSTOCK, Ill. (WTVO) – Despite backlash from vocal critics online, the McHenry County Fair has seen “unprecedented” early ticket sales for rocker …
The web site reports the following:
[Jeff] Kleinschmidt says the venue capacity is about 7,000, and he says 2,500 tickets have been sold as of Friday afternoon.
“Ticket sales have been steady,” he said. “There was a huge surge at first and they will continue to trickle in. We are over 100 days out [from the event.] To have this many presales this early is unprecedented.”