Sat, Apr 17 - Sun, Apr 18, 2021

NASA at Buttonwillow Raceway Park

Buttonwillow Raceway Park

About this event

HPDE, Time Trial (TT), Road Racing, Enduro

WERC 3 hours on Saturday, April 17
Registration closes at 9pm on April 14, 2021.
  • There is a discount for registering before April 2.
  • On April 2, the price to register for racing and WERC increases by $50.
  • After registration closes on April 14, you can only register on-site, at the track. 
  • On-site registration prices increase by $50 for all categories.
  • REVIEW this information to prepare for the event:
TT Driver Screening
  • If you register for TT, you must be pre-approved by the group leader prior to the event or have a TT license. 
  • If you have not participated in NASA SoCal HPDE 4 or TT within the last two years and do not have a NASA Competition License or TT license, you MUST e-mail Greg Greenbaum,, for screening and approval.
Tech Information
  • Tech will be available on Friday, April 16 at 4pm, and Saturday/Sunday starting at 7:30am.
  • Fees:
    • 2021 Season Renewal (valid tech from 2020): $20.00
    • Initial certification inspection w/logbook: $40.00
    • HPDE Tech: $5.00
You need a transponder if you participate in Race or Time Trial groups. Please provide number during registration, or rent one. 
You do not need a transponder if you participate in HPDE 1-2, since you are not timed. DO NOT rent a transponder. 

Cancellation Policy

HPDE/Time Trial/Competition Drivers' School/Open Track: 
  • Full refund less $30.00 processing fee, with at least 1 week notice prior to the event. 
  • No refunds or credits if you cancel less than 1 week prior to the event. 
  • No refunds or credits if you have mechanical problems or your car does not pass tech inspection. No exceptions.
Race Groups: 
  • If you registered at least 14 days in advance of the event AND notify us within 5 days after the missed event, we will carry over the fees to a future event without penalty or provide a full refund, less a $30 processing fee.
  • No partial refunds. 
  • This policy does not apply to special events. 
  • No refunds or credits if you have mechanical problems or your car does not pass tech inspection. No exceptions. Once the car hits the track all fees are non refundable.

For more details, visit

Buttonwillow Raceway Park


Club Race organized by

NASA - California- Southern Region