Endurance Race @ Thunderhill Raceway East

12/14-12/15 (Labor Day Weekend) Thunderhill East Bypass

After the success of our endurance race on Labor Day, and while we are still finalizing our 2025 dates, we are considering another race by the end of 2024. The proposed date is December 14th-15th (Saturday-Sunday) at Thunderhill East track, featuring a 2.5 - 3 hour race.

If you're interested, please sign up at the provided link to reserve your spot. Your sign-up will help us determine if we have enough drivers to proceed. Don't forget to spread the word!

For just $1, you can secure your spot until we have enough drivers confirmed. This is a great opportunity to guarantee your participation and receive a 25% discount.

$1 to pre-sign up
Once the event is confirmed, all early sign-up teams will receive a 25% discount on the entry fee and will be asked to pay the fee. The regular price is $550 per team, and cancellations are permitted at this time.
The race format, regulations, and pricing are the same as our previous event. You can find more details on our blog at the following link: Rules / Blog
Feel free to let us know if you have any questions by emailing us at info@speedsf.com

Rules:

All regulations are followed by NASA Endurance Racing Regulations unless specific.
Tires: Any tires
No minimum driver requirement
Vehicles must comply with SCCA, NASA, Lucky Dog, PCA, WRL, wheel-to-wheel racing rules

Classification:

Three classes: Group A / B /C
Classes will be determined by Sunday's qualifying time. We will class your car based on our experience and the vehicle's performance at the current race.
Group A - Fastest
Group B - Mid
Group C - Slowest

Pit stops:

1 Minimum pit stop required.
Pit stops will only be performed at the hot pit with a 7-minute required pit time. (In and out of the paddock/hot pit)
Refuel must be performed in the hot pit.
Tire change is allowed after refueling.
A timer will be placed on every vehicle during the pit stop.

Race pace:

We will set a delta lap time after the qualifying session. The delta is -1 sec. If your vehicle goes faster than our pre-set lap time by 1 sec of your class, a penalty (Black flag) will be issued.
The first black flag will be a drive-through warning letting you know you have exceeded the time. The second black flag will be a two- (2) minute hold. The third black flag will be a five- (5) minute hold. The fourth black flag will result in a disqualification for that race, and the vehicle will be removed from competition for the rest of the day.