12/9 - 12/10 Thunderhill East 3 miles info on Dec 9, 2023 (110179) | MotorsportReg.com

Speed SF has been hosting High-Performance Driving Events for over a decade. We are one of the largest motorsport organizations in California and host over 35 events per year. Our staff includes experienced track instructors and current race professionals. We provide a friendly environment for open track driving, coaching, and time trial competition. From advanced to beginner drivers, we provide appropriate run groups and have programs for every skill level. Our goal is to provide quality track days for drivers to improve their car control skills, awareness and improved lap times in a safe and relaxed environment. We also limit the number of driver entries in each run group to minimize traffic, resulting in more quality track time. 

 Our customers enjoy the grassroots-style track events with more driving time on track at an affordable rate. Most drivers bring their own cars and spend the day at their favorite race track, honing their driving skills and exploring the potential of their cars.

 Also, our competition series provides a platform for our drivers to compete against their peers, through lap timing. With different classing, our drivers are able to compare their lap times in a competitive environment in vehicles with similar performance potential. 

 Our events are usually at Thunderhill Raceway Park, Sonoma Raceway, WeatherTech Raceway Laguna Seca, and Buttonwillow Raceway. For details, please visit us at www.SPEEDSF.com

Thunderhill Raceway (103dB)

12/9 - 12/10 Thunderhill East 3 miles

Saturday (Bypass) / Sunday (Cyclone)

• 103 dB Sound Limit
• Five 20mins Sessions
• Beginner to advance level run groups.
• Lemon and Chump Cars are not allowed at our events. 
• Open Wheels vehicle is not allowed. (Fenders required) 
• $200 per driver (Early Bird Discount)