Below is a list of Affiliated Circuits we are partners with. All memberships and race entries for these series are handled by the specific circuits. Memberships and race entries for the National and MN Regional circuit will be handled by ISOC. Any questions, email firstname.lastname@example.org.
Showdown Classes – This is an invitation only event to the Affiliate Showdown to be held Friday, March 16 in Lake Geneva, WI at the National event. Top racers in these classes from the affiliated circuits below will race against each other for the title of Affiliate Champ. Top nine in points as of March 6, 2017, will be sent an invitation to this race from your regional circuit.