The best way to locate VEX Teams in your local area or state is to contact your RECF (Robotics Education Competition Foundation) Support Manager. They can be located at :
http://robotevents.com/support
The RECF is the organization that provides support for the 5000+ VEX teams worldwide as well as support for over 300 local and national VEX Events. Growth of the VEX Competition and VEX educational platform has been tremendous, check out the many new and exciting products at
Vexrobotics.com.
Also if you are interested in the 2013 game "Sack Attack: check it out at:
http://www.vexforum.com/wiki/index.php/Sack_Attack
Mike Martus
RECF Support manager
Michigan Office