Sat, Mar 27 - Sun, Mar 28, 2021

NASA at Sonoma Raceway

Sonoma Raceway

About this event

                                                               Thumb norcal logo dodger no flag

Welcome to Sonoma Raceway!  We'll be joined by NASA's Western Endurance Racing Championship (WERC).  

Please be advised the sound limit at Sonoma Raceway is 103dB!

***We still have a few garages! Rent at-track from reg. trailer.  First come, first serve, $150.***

NASA's Western Endurance Racing Championship (WERC) has become a staple of endurance racing, drawing top competitors and teams from around the world for challenging track events that thrill drivers and fans alike.  For more information, check out this link:

 COVID-19 policies: face masks required, no spectators allowed, four support personnel per driver, no passengers in cars on track, cafe is open.  Please review the full list of regulations:

  • From Jerry Kunzman: "There is still a full mask / social distancing mandate in place for this event.  Everyone knows we like to run laid back, low hassle events.  Unfortunately, we have to be super strict with this policy.  It’s not only a matter of public health, but image for us and the raceway.  Masks are required at all times, except: eating/drinking or in your trailer / vehicle.  This includes wearing a mask even when walking by yourself outdoors or working in the garage area.  Hopefully this nightmare will soon be over for all us.  Just don’t make it a bigger nightmare for you by getting excluded from the event for non-compliance.  Thank you."

FRIDAY TEST DAY, March 26: Open track and race testing event. 2-for-1 deal for first 30 drivers to register! (2 car slots and 1 garage bay)


If you do not see the HPDE Group that you want, it means that it's full.  If you are unsure of which HPDE level to choose, please contact us:

HPDE / TT Groupings for this event:


- HPDE 1 & 2
- HPDE 3
- HPDE 4
- TT


- HPDE 1 & 2
- HPDE 3
- HPDE 4
- TT



Do not choose "instructor" below. One will be assigned to you automatically.


HPDE 2 is for drivers that have been signed off to drive on their own, but just want more time in HPDE 1. So, Group 2 is Group 1 (and runs with Group 1), but they have no instructor assignment. Please see this notice before signing up


There will be at least four 20-minute sessions. Please see the prerequisite page to make sure you are eligible.
Sunday only entrants MUST have completed a prior Sunday HPDE3 event to be eligible.


There will be at least four 20-minute sessions. Please see the prerequisite page to make sure you are eligible.



All regular NASA race groups: AI, AIX, CMC, FFC, GTS, PRC, PT, ST, HC, NP01, SM, SI, ST, STR, SU, SpecE30, SE46, SpecZ, Pro, Semi-Pro, Thunder Roadster.

LATE REGISTRATION FEE: Online registration closes Tuesday at 6 PM week of the event.  After that, all registrations must be done at the track and pay a $100 late fee.

WERC Endurance Race will be Sunday AM (two hours thirty minutes).  Practice and qualifying will be on Saturday.  


Spec Miata / Spec E46 drivers may Supersize to ST.

Enduro- 2h30m on Sunday morning. Practice and Quali on Sat. 3+ hours of track time!



There is a STRICT sound limit of 101 dBA measured 50’ from the line on driver’s right, apex of T12.  Attempts to fool the meter or lift will easily be detected by the track’s dedicated sound person (they hate that!).  So, please prepare to adjust your muffling system if necessary.  This is the same standard that has been in place for years.



Please review the Acceptance Package for more info:

No on-site helmet rentals at Sonoma Raceway.  To rent a helmet in advance, contact Ken at I/O Port,

There is a $10 fee per person per event at the gate (Keep your stub for the weekend).

Schedules and paddock maps will not be available until the week of the event.

Your car must be tech'd before going on track.


HPDE/School/Open Track: Full refund less $30.00 processing fee, with at least 1 week notice prior to the event, otherwise no refunds or credits. No exceptions.

Race Groups: Fees are fully refundable, less a $30 processing fee, provided that you registered at least 12 days in advance and you notify your NASA region within 5 days following the missed event. No partial refunds allowed. This policy does not apply to special events. Once the car hits the track all fees are non refundable.

Online Reg Closes Tue, Mar 23, 6 PM.

For more details, visit

Sonoma Raceway


HPDE organized by

NASA - California- Northern Region