Next NARBC Tinley?

I recall that this past february there was an NARBC show at Tinley Park, I think over Valentines weekend. So far their website only has one 2011 show scheduled, and that's in Arlington.

Does anyone know if Tinley regularly gets two shows a year, or has it varied?

There will only be one show in Tinley next year.
October 8th & 9th in 2011.