Welcome to the official page for the National Auto Sport Association Northern California Region (NASA NorCal).
Getting you on the best Northern California Tracks including, Laguna Seca, Sonoma Raceway and Thunderhill Raceway. We are the home of the world-renowned 25 Hours of Thunderhill.
05/13/2026
Register today! The NASA 12 Hours of Thunderhill Raceway will be held on September 19! Prices increase June 1.
Registration Link: https://members.drivenasa.com/events/5334
Rules: https://nasanorcal.com/wp-content/uploads/2026/04/12-hour-rules-short.doc
05/07/2026