2.5 hours Endurance Race - Round 4

12/5 - 12/6 (Sat - Sun) Thunderhill Raceway 3 miles east

re-register today for just $1 to reserve your spot and lock in our special early bird pricing!

What's Included?

Registration Pricing

Additional Practice Sessions: $150 per day. (Open Track)

How Pre-Registration Works

Pay just $1 today to pre-register.
Lock in your discounted race entry price based on your registration date.
You will NOT be charged the full race entry fee until the event is officially confirmed.
Cancel before 11/13 for a full refund.

Help Us Make This Race Happen!

We need a minimum of 15 drivers to confirm this event.

The more drivers who sign up early, the better our chances of making this race a reality!

Register early, invite your racing friends, and help spread the word!

🏁 Don't miss the $250 Early Bird Deal – Register before October 28!

Rules:

Tires: Any tires
No minimum driver requirement
Vehicles must comply with SCCA, NASA, Lucky Dog, PCA, WRL, wheel-to-wheel racing rules
The race format, regulations, and pricing remain identical to those of our previous event. You can find more details on our blog at the following link: https://www.speedsf.com/endurance-series
Feel free to let us know if you have any questions by emailing us at info@speedsf.com

Classification:

Three classes: Group A / B /C
Classes will be determined by Saturday's qualifying time. We will classify your car based on our experience and the vehicle's performance at the current race.
Group A - Target lap time: 1:54 - 1:59* (Thunderhill Raceway 3 miles)
- Example: M3, Corvette, Cayman, etc
Group B - Target lap time: 2'00 - 2'05*
- Example: 350z, S2000, Spec E46, Mustang, Boxster, etc
Group C - Target lap time: 2'06+*
- Example: Miata, E30, IS300, 944, E36 325i/328i, etc
*Actual Classing will be determined by historical data and the build reports supplied by teams after the qualifying session

Pit stops:

1 Minimum pit stop required.
Pit stops will only be performed at the hot pit with a 5-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.

#	Name	Class	Vehicle	Hometown	Sponsor
12	AJ Mirwani	Purple - Enduro		Milpitas, CA
177	Nick Fogler	Purple - Enduro		Santa Cruz, CA