Fri, Oct 29 - Sun, Oct 31, 2021

SFR Championship Regional 15, 16, 17

RR-Thunderhill Raceway Park

About this event





San Francisco Region SCCA

Championship Series Regionals 15, 16, 17

Tom McCarthy Memorial Races

Thunderhill Raceway

October 29 - 31, 2021

Schedule :  Triple Regional

All races are double points.

Entry Fees:

Triple Race $515

Single Race $375

Dual (extra class, same driver, all or part of weekend)  $225  

Enter by Friday, October 22th to retain your permanent number.

Online entry closes Tuesday, October 26th at midnight; after that you will need to enter at the track. 

CAR NUMBERS are confirmed Friday afternoon the week before the race. 

Enter Now, Pay Later!  SFR will charge your credit card AFTER the race weekend. When you register for a race, you enter your credit card information; after the race weekend, we actually process the card. Now there’s no money barrier to entering early, ensuring you retain your all-important permanent number!

Thunderhill Test Day on Thursday, October 28th -


If you have questions about the race weekend, please contact the SF Region Office: 888-995-7222 or

Seven Groups:

Group 1                              FA, FM, F4, FS, FX

Group 2                              P1, P2, FE, FE2, S2, DSR, ASR, PX

Group 3                              ITE, GT1, GT2, GT3, GTA, SP, EP, N3/L, SS, T1, T2, T3, E46, AS, GTX, MC, SMX

Group 4                              FF, CF, FV, FST, F5, FC, FFT, THR

Group 5                              ITS, ITA, ITB, ITC, ITX, ITR, FP, HP, GTL, STL, STU, SMG, E30, BS, T4, SM5, SSC5

Group 6                              SRF3; SRF (split start)

Group 7                              SMT, SSM, SM

If you do not already have a MotorsportReg account, please follow the steps below to create your account this first time. Next time you enter, just log into your account and future entries for SFR events will be quick and painless!

  1. If you do not already have one, create an account on after reading these steps.
  2. Once logged in, click "My Account" in the top right
  3. Review your vehicle(s), making sure to enter your permanent/preferred numbers and your transponder number
  4. Enter your medical information for the Ambulance/Life Support crew.
  5. Now come back to this page and enter the event and pay online.



Event requirements

To enter any SFR road racing event, you must have a valid competition license.

In addition to SCCA licenses, the organizations whose licenses are currently approved by SCCA for competition in Regional events are as follows: BMW CCA Club Racing Full Competition; FIA Issued by any sanctioning body; Historic Sportscar Racing (HSR) HSR License; ICSCC; IMSA; NASA Full Competition; Porsche Club of America Full Competition; SCCA Pro Racing; SVRA; VARA; VMC.

All vehicles must meet the safety requirements detailed in the current SCCA General Competition Regulations. Transponder numbers are required for ALL CARS. If you do not have a transponder listed in your vehicle profile, you MUST rent one.

You will receive an email confirmation/receipt of your entry.  If you have any questions about the event, you can call the SCCA office at 530-934-4455 or email at

If you have technical issues with online entry for the event on, you can contact MSR customer support during normal business hours at 415.462.5603 or by email here.

All drivers must still go through on-site registration with logbooks and licenses at the track.

On the next page:  add or select your vehicle.

Entries (174)

Michael Whelden
Kristofer Olson
Kim Willcox
Bob Geren
April Halliday
Donald Swartz
Aaron Garfinkel
Hank Raymond

RR-Thunderhill Raceway Park

Willows, CA
Download track map
Download track map
Buy track decal
Buy track decal
Buy virtual track walk
Buy virtual track walk


Club Race organized by

SCCA - San Francisco Region - Club Racing

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Event over!