Wednesday Night Series · Sonoma Raceway
Slip Happens
Precision driving after dark.Where traction ends and skill begins.
See Event Dates ↓
Time
5–10 PM
Location
Sonoma Paddock
Format
AutoX / Oversteer
Sound Limit
103 dB
Price
$175 / driver
Early Bird Discount available — expires 3 weeks before the event date, or once the event hits 60% capacity, whichever comes first.
Event Dates
Wednesday Series + Weekend AutoX add-ons
Wednesday Series
Mar 4 · Wed
Slip Happens
Sold Out
Apr 15 · Wed
Slip Happens
Sold Out
Jun 10 · Wed
Slip Happens
Event Ended
Weekend AutoX
Feb 28–Mar 1 · Sat/Sun
AutoX Weekend
Event Ended
May 8–10 · Fri–Sun
AutoX Weekend
Event Ended
Jun 6–7 · Sat/Sun
AutoX Weekend
Event Ended
Upcoming — Wednesday Series
Upcoming — Weekend AutoX Add-Ons
What Is Slip Happens
It's an Auto-X–style layout that allows controlled oversteer in designated areas — built around car control, rotation, and having fun in a safe environment. Runs Wednesday evenings, 5–10 PM, arrive anytime. Perfect for a mid-week reset, a post-work driving fix, or just laps with friends before the weekend.
Who It's For
- First-time drivers building real car control
- AutoX drivers wanting faster corner exits
- Track day drivers improving rotation and balance
- Experienced drivers refining throttle modulation
- Anyone curious about the limit — safely
What It's Not
- Not a drift competition
- Not full-course drifting
- Not unlimited smoke sessions
- No full race drift cars
Why Slip Happens
- Real speed comes from understanding what happens beyond grip
- Fast drivers rotate the car — they don't just steer it
- Confidence at the limit translates everywhere else
- And let's be honest — slip happens
Wheel Storage Service
$15per wheel / month
Securely store your event wheels on-site at Sonoma Raceway. When you're ready for your next AutoX, Slip Happens, or track day, we'll mount and swap your tires and have everything event-ready. Arrive on your street tires, swap to your event set, and drive home comfortably — no loading wheels into your car, no last-minute stress.
- $15 per wheel per month
- 24–48 hours notice required for wheel pickup / prep
- Mounting and tire installation available at an additional cost
- Available for SpeedSF events at Sonoma Raceway only, at this time
Partners
Strategic Partners
Program Partners