Event #4177: Jun 24th - 25th, 2023

Incredible road course featuring a hilly course with 160' of elevation change!

Event Information

Date: Jun 24th - 25th, 2023

Track Name: Sonoma Raceway

Configuration: Road Course

Direction: CW

We are running the NASCAR CHUTE for this event!

The NASCAR CHUTE is 1.949 miles, bypassing the carousel and shooting down the back, directly from Turn 4a to Turn 7.

IMPORTANT: Check the schedule for the location of your group's morning driver's meeting. In-car instruction is provided for HPDE1. If you are signed up for HPDE1 and prefer to have a lead-follow instruction format, please let your group leader know. Spectators allowed. Passengers allowed (must be at least 18 years old) and must sign in at registration to get a wrist band to participate.


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: https://nasanorcal.com/contact-us/.

HPDE / TT Groupings for this event:


- HPDE 1 & 2

- HPDE 3 & 4

- TT


- HPDE 1 & 2

- HPDE 3 & 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 check the website or contact the group leader to make sure you are eligible. https://nasanorcal.com/hpde-get-started/.


There will be at least four 20-minute sessions. Please check the website or contact the group leader to make sure you are eligible. https://nasanorcal.com/hpde-get-started/.

Sunday only entrants MUST have completed a prior Sunday HPDE3 event to be eligible.


There will be at least four 20-minute sessions. Please check the website or contact the group leader to make sure you are eligible. https://nasanorcal.com/hpde-get-started/.



All regular NASA race groups: AI, AIX, ST, SU, NP01, SM, SE30, SE46, 944 Spec, Spec-Z, Legends, Thunder Roadsters.

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.

License: Your competition license is good for one season. Purchase your season license online in your member account. Apply for a new NASA license here: https://form.jotform.com/drivenasa/license-application

Medicals: If your medical is expired, you're ineligible to race! Use this link to renew your medical info: https://form.jotform.com/drivenasa/nasa-medical-application


Spec Miata / Spec E30 drivers may Supersize to ST.



There is a STRICT sound limit of 103 dB 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: https://nasanorcal.com/wp-content/uploads/2021/03/Acceptance-Package.pdf

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

No on-site helmet rentals at Sonoma Raceway. To rent a helmet in advance, contact Ken at I/O Port, https://www.ioportracing.com/helmet-rental/.

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

Your car must be teched before going on track (all HPDE, TT, and racers).


HPDE/School/Open Track - Full refund less $30.00 processing fee or account credit, with at least one week notice prior to the event.

Race Groups: Full refund less a $30 processing fee or account credit, provided that you registered at least 12 days in advance and you notify your NASA region within five 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 Jun 20 @ 11:59 PM!

Registration is closed for this event!