Thunderhill Raceway

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Thunderhill Raceway Thunderhill Park is a 5.0-mile (8.047-km), road course. The course is a fast series of twists and turns with minor elevation changes.
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Thunderhill Raceway Park is a road racing course located 7 miles (11 km) West of Willows, California on Hwy 162. It is host to many motorports events for cars and motorcycles. The SCCA uses Thunderhill for its automotive race competitions. The Northern California Chapter of the AFM runs several motorcycle races there every year. The standard road course at Thunderhill Park is a 3.0-mile (4.83-km), 15 turn course, however the track is configurable and event organizers can configure the course as they see fit. Thunderhill is the site of the longest automobile race in the United States; the 25 Hours of Thunderhill. The race is held annually during the first weekend in December and is sanctioned by NASA (National Auto Sport Association).

A thank you to Matt Busby If you’re lucky enough to know Matt, you probably know he wouldn’t let us share this. So we’re...
09/29/2026

A thank you to Matt Busby
If you’re lucky enough to know Matt, you probably know he wouldn’t let us share this. So we’re not telling him. We’re posting it anyway. Sorry, Matt.

With the Thunderhill East repave now complete, we’ve spent a lot of time talking about what went into the new surface—the engineering, the planning, the crews, the details, and the investment behind it. But there’s one part of the story we haven’t talked enough about: the vision and dedication it took to see a project of this scale through to the end.

From the beginning, Matt was deeply involved in this process. And we mean deeply. He didn’t just approve a repave and hand it off. He took the time to understand every single piece of it—from asphalt mixes and subbase conditions to drainage, curbing, tolerances, construction methods, and how every decision would ultimately affect the people using this track and our future.
Plenty of opportunities came up to make things easier, faster, or cheaper. Matt kept pushing to do it right, with no compromise on quality. That attention to detail says a lot about how Matt approaches Thunderhill as a whole.

At Thunderhill, we’re here for the long haul.
That means taking what this community gives Thunderhill and putting it right back into the facility, the racing experience, and the people who continue to make this place what it is today. The completed East repave is one of the biggest examples of that commitment—an investment in this facility’s future and the generations of racers and riders who will experience it.

Matt called this project “a very high-stakes investment into the next 50 years of Thunderhill.” Now that it’s finished, we can see just how seriously he took that responsibility every step of the way.
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And in true Matt fashion, he’d be the first to tell you this wasn’t a one-man job. The SFR SCCA board backed this project and made the investment possible. The Thunderhill staff carried out the day-to-day work of keeping the facility running while a repave of this scale happened. And the paving contractors and crews put in the engineering and physical work, the long hours, and the technical precision that got this surface built

09/10/2026

Every curb on this track is painted by hand.
Not sprayed. Not templated. Brush and roller in hand, line by line, all the way around Thunderhill.

It’s slow. It’s tedious. We care. It matters.

This is the kind of detail nobody notices until it’s wrong.

Racing’s back! Come get on the fresh & new track!

09/09/2026

$10 million. Three layers of asphalt. 18 months of CAD work. One brand new race track.

Matt breaks down what actually went into repaving Thunderhill — the engineering, the timing, the science behind why this surface will outlast most tracks in the country.

Base lift to absorb ground movement. Leveling lift. Wearing lift built to handle real shear load from real racing. Poured in July and August on purpose, because the heat is what makes the asphalt behave.
It’ll take a full year to cure. Gets grippier for the next 24 months. Then holds for about a decade. Expected lifespan: 20-25 years.

One ask from Matt: keep your cars tight. Fresh binder does not like oil, fuel, or antifreeze. This is a shared investment — help us protect it. Contact us to get on the new track!!

770 curbs. Every one set by hand.Three miles of perfect racing surface, five inches deep, laid in three separate lifts —...
08/31/2026

770 curbs. Every one set by hand.

Three miles of perfect racing surface, five inches deep, laid in three separate lifts — each one a different mix doing a different job.

Twelve inches into the soil at Turn 14. Drainage rebuilt at 4 and 6. All of it in a hot Willows summer, working a temperature window where 5 degrees the wrong way makes a whole load useless.

Most of what these crews built is already buried. That’s the job. Swipe through. Full story, link in bio.

08/25/2026

“We’re completely blowing up and rebuilding the entire racetrack in 45 days… the way we did the curbing was driven really heavily by how is this going to drive or ride on a motorcycle”

08/24/2026

BIG NEWS. 🏁
Global Time Attack is officially joining the 2027 Thunderhill Open
That means GTA’s fastest cars, sharpest drivers, and the whole time attack scene are pulling into the paddock alongside road racing, drifting, and everything else that made year one a good time.
📍 Thunderhill Raceway Park, Willows, CA 📅 March 5–7, 2027
More announcements coming. Mark your calendars; this one’s getting bigger.
Global Time Attack Thunderhill Raceway

08/11/2026

Triple-digit heat. Long days for the crew. Our new East track surface going down one strip at a time. This crew doesn’t miss.

08/03/2026

Just a few days ago, prepping for the fresh black stuff! 🏁

07/14/2026

We didn’t patch it. We’re pulling it. Doing it right.
Watching the original asphalt come off the East track. New surface drops soon.

Racers — what are you expecting to feel different? Drop it below.

📹 EVM

Address

5250 State Highway 162
Willows, CA
95988

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 9pm
Thursday 7am - 7pm
Friday 7am - 7pm
Saturday 7am - 7pm
Sunday 6am - 7pm

Telephone

+15309345588

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