The registration site for the first event of the second half of the 2017 Time Trial series (Big Willow, September 30-October 1) opens Sunday August 20 at 9:00 am PDT at:
http://msreg.com/WSIR17
Space is limited, first-come (who register properly — be sure you read the first two pages carefully), first-served.
Note to those attending the August 20 Autocross: If you are a Season Pass member, you may wait until after the AX concludes to register and still receive priority. If you are not a Season Pass member, you may sign up on your mobile device at the AX, but please do so carefully as incorrect registrations receive last priority. Please read the two pages that are available now at the above link, perform all tasks now that are required prior to the opening of registration, and have your full car classification info available to you when you register.