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Event types: HPDE 86 / GR Challenge Special Event Enduro Miata TT AutoX Bimmer Challenge SpeedSF Challenge Slip Happens
SpeedSF Track Events
2026 Schedule
January
Jan 10–11
Thunderhill East
February
Feb 14–15
Thunderhill East
Feb 28
Sonoma Raceway
March
Mar 1
Sonoma Raceway
· Slip Happens
Mar 14–15
WeatherTech Raceway Laguna Seca
April
Apr 4–5
Thunderhill West
Apr 4–5
WeatherTech Raceway Laguna Seca
Apr 10
Thunderhill East
Apr 15
Sonoma Raceway
· Slip Happens
Apr 25–26
Buttonwillow
May
May 8–10
Sonoma Raceway
May 16–17
Thunderhill
June
Jun 6–7
Thunderhill East
Jun 6–7
Sonoma Raceway
Jun 10
Sonoma Raceway
· Slip Happens
July
Jul 1
Sonoma Raceway
· Slip Happens
Jul 3–5
Sonoma Raceway
August
Aug 26
Sonoma Raceway
· Slip Happens
September
Sep 2
Sonoma Raceway
· Slip Happens
Sep 11
WeatherTech Raceway Laguna Seca
Sep 12–13
Sonoma Raceway
Sep 16
Sonoma Raceway
· Slip Happens
Sep 25–26
WeatherTech Raceway Laguna Seca
October
Oct 14
Sonoma Raceway
· Slip Happens
Oct 24–25
Thunderhill West
November
Nov 4
Sonoma Raceway
· Slip Happens
Nov 14–15
WeatherTech Raceway Laguna Seca
Nov 27
Buttonwillow
Nov 28–29
WeatherTech Raceway Laguna Seca
Nov 28–29
Sonoma Raceway
December
Dec 19–20
WeatherTech Raceway Laguna Seca
June
3 event weekends
Thunderhill East
Jun 6–7 · Sat/Sun
Thunderhill East
Thunderhill Raceway Park — East
Event Components
HPDE Track Day (Sat + Sun)HPDE
86 Challenge86 Challenge
Register ↗
Sonoma Raceway
Jun 6–7 · Sat/Sun
Sonoma Raceway
Sonoma Raceway
Event Components
HPDE Track Day (Sat + Sun)HPDE
2.5 Hr EnduroEnduro
AutoX — Sat + SunAutoX
HPDE ↗ Enduro ↗ AutoX ↗
Slip Happens
Jun 10 · Wed · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
AutoXSlip Happens
Register ↗
July
4 event weekends
Slip Happens
Jul 1, 2026 · Wed · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
AutoXSlip Happens
Register ↗
Sonoma Raceway
Jul 3–5, 2026 · Fri–Sun · 4th of July Weekend
Sonoma Raceway
Sonoma Raceway · 3-Day Weekend
Event Components
HPDE Track Day — Fri–SunHPDE
S2000 Mega Meet — July 4th 2026Special
Bimmer Challenge — Jul 5, 2026Bimmer
SpeedSF Challenge — Time Attack — Jul 5, 2026SpeedSF Challenge
JDM Day — Jul 5, 2026Special
HPDE ↗ AutoX ↗ S2000 Mega Meet ↗ JDM Day ↗
S2000 Mega Meet flyer
Jul 4, 2026 · Sat · S2000 Mega Meet
S2000 Mega Meet 2026
Sonoma Raceway · July 4
Special Event
Honda S2000 car meetSpecial events
Parade LapsParade
HPDE + AutoXHPDE
Event Page ↗
JDM Day flyer
Jul 5, 2026 · Sun · JDM Day
JDM Day 2026
Sonoma Raceway · July 5, 2026
Special Event
JDM car meetSpecial events
Parade LapsParade
HPDEHPDE
AutoXAutoX
Event Page ↗
August
1 event
Slip Happens
Aug 26 · Wed · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
AutoXSlip Happens
Register ↗
September
5 event weekends
Slip Happens
Sep 2 · Wed · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
AutoXSlip Happens
Register ↗
WeatherTech Raceway Laguna Seca
Sep 11 · Fri
WeatherTech Raceway Laguna Seca 105db
WeatherTech Raceway Laguna Seca
HPDE Track DayHPDE
Register ↗
Sonoma Raceway
Sep 12–13 · Sat/Sun
Sonoma Raceway
Sonoma Raceway
Event Components
HPDE Track Day (Sat + Sun)HPDE
2.5 Hr Enduro — Sep 12–13, 2026Enduro
NorCal Miata TT — Sep 13, 2026Miata TT
AutoX — Sat + SunAutoX
HPDE ↗ Enduro ↗ AutoX ↗
Slip Happens
Sep 16 · Wed · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
AutoXSlip Happens
Register ↗
WeatherTech Raceway Laguna Seca
Sep 25–26 · Fri/Sat
WeatherTech Raceway Laguna Seca 105db
WeatherTech Raceway Laguna Seca
HPDE Track DayHPDE
Register ↗
October
2 event weekends
Slip Happens
Oct 14 · Wed · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
AutoXSlip Happens
Register ↗
Thunderhill West
Oct 24–25 · Sat/Sun
Thunderhill West
Thunderhill Raceway Park — West
Event Components
HPDE Track Day (Sat + Sun)HPDE
86 Challenge — Oct 24, 202686 Challenge
NorCal Miata TT — Oct 25, 2026Miata TT
SpeedSF Challenge — Oct 24–25, 2026SpeedSF Challenge
Register ↗
November
4 event weekends
Slip Happens
Nov 4 · Wed · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
AutoXSlip Happens
Register ↗
WeatherTech Raceway Laguna Seca
Nov 14–15 · Sat/Sun
WeatherTech Raceway Laguna Seca 105db
WeatherTech Raceway Laguna Seca
Event Components
HPDE Track Day (Sat + Sun)HPDE
GR DaySpecial
Bimmer Challenge — Nov 15, 2026Bimmer
Register ↗
Buttonwillow CW13
Nov 27 · Fri
Buttonwillow Classic
Buttonwillow Raceway Park — CW13
Event Components
HPDE Track DayHPDE
NorCal Miata TT — Nov 27, 2026Miata TT
SpeedSF Challenge — Nov 27, 2026SpeedSF Challenge
Register ↗
WeatherTech Raceway Laguna Seca
Nov 28–29 · Sat/Sun
WeatherTech Raceway Laguna Seca 92db
WeatherTech Raceway Laguna Seca
HPDE Track Day (Sat + Sun)HPDE
Register ↗
Sonoma Raceway
Nov 28–29 · Sat/Sun
Sonoma Raceway
Sonoma Raceway
Event Components
HPDE Track Day (Sat + Sun)HPDE
86 Challenge — Nov 28, 202686 Challenge
Bimmer Challenge — Nov 29, 2026Bimmer
SpeedSF Challenge — Nov 29, 2026SpeedSF Challenge
AutoX — Sat + SunAutoX
HPDE ↗ AutoX ↗
December
1 event weekend
WeatherTech Raceway Laguna Seca
Dec 19–20 · Sat/Sun
WeatherTech Raceway Laguna Seca 92db
WeatherTech Raceway Laguna Seca
HPDE Track Day (Sat + Sun)HPDE
Register ↗
January
1 event weekend
Thunderhill East
Jan 10–11 · Sat/Sun
Thunderhill East
Thunderhill Raceway Park
HPDE Track DayHPDE
February
2 event weekends
Thunderhill East
Feb 14–15 · Sat/Sun
Thunderhill East — Cyclone / Bypass
Thunderhill Raceway Park — East
Event Components
HPDE Track DayHPDE
86 Challenge — Feb 14, 202686 Challenge
SpeedSF Challenge — Feb 15, 2026SpeedSF Challenge
NorCal Miata TT — Feb 15, 2026Miata TT
Sonoma Raceway
Feb 28 · Sat
Sonoma Raceway
Sonoma Raceway
HPDE Track DayHPDE
March
2 event weekends
Slip Happens
Mar 1 · Sun · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
Event Components
AutoXSlip Happens
NorCal Miata TT — Mar 1, 2026Miata TT
WeatherTech Raceway Laguna Seca
Mar 14–15 · Sat/Sun
WeatherTech Raceway Laguna Seca 92db
WeatherTech Raceway Laguna Seca
Event Components
HPDE Track Day (Sat + Sun)HPDE
86 Challenge86 Challenge
April
4 event weekends
Thunderhill West
Apr 4–5 · Sat/Sun
Thunderhill West
Thunderhill Raceway Park — West
Event Components
HPDE Track Day (Sat + Sun)HPDE
86 Challenge CCW — Apr 4, 202686 Challenge
86 Challenge CW — Apr 5, 202686 Challenge
NorCal Miata TT — Apr 5, 2026Miata TT
WeatherTech Raceway Laguna Seca
Apr 4–5 · Sat/Sun
WeatherTech Raceway Laguna Seca 103db
WeatherTech Raceway Laguna Seca
HPDE Track Day (Sat + Sun)HPDE
Thunderhill East
Apr 10 · Fri
Thunderhill East
Thunderhill Raceway Park — East
HPDE Track DayHPDE
Slip Happens
Apr 15 · Wed · 5PM–10PM
Slip Happens — Sonoma
Sonoma Raceway
AutoXSlip Happens
Buttonwillow Circuit
Apr 25–26 · Sat/Sun
Buttonwillow Circuit
Buttonwillow Raceway Park
Event Components
HPDE Track Day (Sat + Sun)HPDE
2.5 Hr Enduro Round 1 — Apr 25–26, 2026Enduro
86 Challenge — Apr 25, 202686 Challenge
SpeedSF Challenge — Apr 26, 2026SpeedSF Challenge
May
2 event weekends
Sonoma Raceway
May 8–10 · Fri–Sun · ★ Featured Weekend
Sonoma Raceway — GR Motorsport Fest Weekend
Sonoma Raceway · 3-Day Weekend
All components across 3 days
HPDE Track Day — Fri–SunHPDE
AutoX — Fri–SunAutoX
GR Motorsport FestSpecial
86 Challenge — May 9, 202686 Challenge
GRC ChallengeGR Challenge
Bimmer Challenge — May 9, 2026Bimmer
Time Attack FestSpecial
Corvette DaySpecial
NorCal Miata ChallengeMiata TT
SpeedSF Challenge — May 10, 2026SpeedSF Challenge
Thunderhill Open 5 Mile
May 16–17 · Sat/Sun
Thunderhill Open
Thunderhill Raceway Park — 5 Mile
HPDE Track Day — All Drivers, All CarsSpecial
Tesla CorsaSpecial

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