The 56th annual Racing Drivers Club Illgen Enduro will be held on October 25, 2015 at Thunderhill Raceway as part of the San Francisco Region’s final event. It will be a 4 hour enduro on the 3-mile track. The Supplementary Rules and Regulations, as well as run group format and rules for tag team handicapping, will be published very shortly and posted on our Enduro Tab. To enter, you will need to be an RDC member, but if you join now (still $35) prior to the SFR Regional Opener March 7-8, all of your regular season racing points will count toward the separate RDC points series.