Thunderhill Raceway Track Days

Drive Thunderhill Raceway with LightSpeed — California's premier driver-run HPDE and track day organization.

Thunderhill Raceway Park in Willows, California is home to one of the longest road courses in North America — the epic 5-mile full course that combines the East and West tracks. LightSpeed regularly hosts events at Thunderhill, offering drivers the chance to experience this massive, technically demanding circuit at all skill levels.

What to Expect at a LightSpeed Thunderhill Event

Thunderhill offers a unique experience compared to our other venues. The wide layout, long straights, and technical sections make it equally approachable for beginners and challenging for experienced drivers. With LightSpeed's structured run groups and attentive instructors, you'll be pushing your limits safely from the first session.

Run Groups: Novice, Intermediate, Advanced, and Time Trial

Car Requirements: Any street-legal vehicle in good mechanical condition

Instructors: Professional in-car coaching available for all levels

Track Layout: Choose from the East course, West course, or the full 5-mile circuit depending on the event

Why Drive Thunderhill with LightSpeed?

Thunderhill is an underrated gem in the California motorsport scene. LightSpeed events here give drivers more room, more variety, and the satisfaction of mastering one of the longest circuits on the West Coast. If you've only driven Sonoma or Laguna Seca, Thunderhill will surprise you.

Upcoming Thunderhill Events

Check our 2026 event schedule for all upcoming Thunderhill Raceway track days, HPDE events, and time trial sessions. Register early — spots fill fast.