A new USA Dance competition in Kansas City has its inaugural on September 7, 2013. See http://kansascitydanceclassic.com. It's nice to see new venues, and this one is in an underserved and deserving area of the great plains. Come help give it a great send-off!
Just an FYI in case there are questions about the location- it is the Kansas City metro area but the venue is actually on the south side of Overland Park KS (a large Kansas-side suburb). It is a very nice venue BTW. The couple putting this event on attend the studios I go to so I'm going to give them a boost and pass on the expressions of interest
If you're looking for an amateur competition in the Midwest on the weekend following Labor Day, competitor registration for this event is open through August 15. http://kansascitydanceclassic.com/rules/
The entry fee goes up on Monday but is still quite reasonable even after that.