Mini-z/dnano tracks near northern KY?

[Mach Nine]

I'm thinking of getting a mini-z or dnano for christmas buuut the only problem is I have nowhere to race them =/. Does anyone know of any tracks near Northern KY (doesn't matter how close, just the "closest") that race either one? I've tried mini-zracer.com but no luck. I'm hoping that there's just not a site for the place that races them =/.

Thanks guys.