Road course · California, USA
The Thermal Club
The Thermal Club is a road course in California. OpenStreetMap maps 6 layouts here, the longest 4.50 mi (7.24 km). Below: the map, every corner with a computed line, the elevation, and where to stay and eat.
- 4.49
- Miles
- 26
- Corners
- 10
- Ft of elevation
01Track map
Thermal track map
Full circuit
Name inferred by TRACK from the mapped loops, not an official layout name.
- Mapped length
- 4.50mi
- 7.24 km
- Direction
- Counter-clockwise
- From OSM one-way tagging.
- Start/finish line
- Estimated
- Estimated by TRACK from the mapped geometry and not verified on site. TRACK asks you to confirm or move it before timing laps here, when you’re stopped.
- Corners
- 26
- Inferred from curvature, not official turn numbers
- Sectors
- 3
- Estimated, near each third of the lap
Source geometry: OpenStreetMap ↗. Something wrong? Fixing it in OpenStreetMap improves it for everyone.
02Overview
What Thermal is like to drive.
The full circuit layout at Thermal is 4.49 miles with 26 corners worth setting up for and about 10 ft of elevation change. A generic track-day car in our model brakes hard 22 times a lap and is at full throttle for about 39% of the distance; the longest straight runs roughly 1706 ft.
10 of the corners are slow (under 50 mph in the model), 3 are fast (over 75 mph). There are hairpins where exit speed matters more than entry. The corner notes below come from the mapped geometry, not from local knowledge; we’ll add a researched guide for Thermal later.
03Lap at a glance
Where the speed is, and where the hills are.
- Length
- 4.49mi
- Elevation range
- 10ft
- Steepest grade
- 1%
- Braking zones
- 22model
- Full throttle
- 39% model
- Longest straight
- 1706ft
The speed trace is a model, not a real lap: a generic track-day car (about 1.1 g of cornering grip, 1 g braking, 150 W/kg) driven on the computed line through an assumed 12 m wide track. Use it to see where the braking zones and flat-out sections are, not to predict your speeds. Elevation: USGS 3DEP 1/3 arc-second (NED 10 m) via OpenTopoData, sampled every 25 m along the mapped centerline.
04Corner by corner
The corners at Thermal.
TRACK’s own corner numbering (C1, C2…), found from the curvature of the mapped centerline. It isn’t the official turn numbering. Each diagram shows the computed line: the minimum-curvature path through an assumed 12 m wide track. It’s a geometric starting point. Your instructor’s line comes first.
- C1
Thermal Club
↱ RightmediumhairpinTRACK numbering
A medium right-hand hairpin that turns about 161°, tightening to a radius of roughly 24 m (79 ft). The model car barely brakes here, carrying about 55 mph: a lift or a confident throttle balance. The computed line turns in from the left side, takes a late apex, about 100 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 161° right
- Tightest radius
- 24 m
- Model speed
- ≈ 55 mph
- Braking (model)
- Lift / none
- Grade
- 0.0%
- C2
Thermal Club
↱ RightmediumchicaneTRACK numbering
A medium right-hand chicane that turns about 59°, tightening to a radius of roughly 40 m (131 ft). The model car brakes for about 55 m (180 ft), from 87 to 66 mph. The computed line turns in from the left side, takes a late apex, about 60 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 59° right
- Tightest radius
- 40 m
- Model speed
- 87 → 66 mph
- Braking (model)
- 55 m
- Grade
- 0.0%
- C3
Thermal Club
↱ RightmediumcornerTRACK numbering
A medium right-hand corner that turns about 46°, tightening to a radius of roughly 40 m (131 ft). The model car brakes for about 55 m (180 ft), from 87 to 66 mph. The computed line turns in from the left side, takes an apex close to the geometric apex, and lets the car run out to the left on exit.
- Turns
- 46° right
- Tightest radius
- 40 m
- Model speed
- 87 → 66 mph
- Braking (model)
- 55 m
- Grade
- 0.0%
- C4
Thermal Club
↰ LeftslowhairpinTRACK numbering
A slow left-hand hairpin that turns about 182°, tightening to a radius of roughly 19 m (62 ft). The model car barely brakes here, carrying about 39 mph: a lift or a confident throttle balance. The computed line turns in from the right side, takes an apex close to the geometric apex, and lets the car run out to the right on exit.
- Turns
- 182° left
- Tightest radius
- 19 m
- Model speed
- ≈ 39 mph
- Braking (model)
- Lift / none
- Grade
- -0.1%
- C5
Thermal Club
↱ RightslowhairpinTRACK numbering
A slow right-hand hairpin that turns about 195°, tightening to a radius of roughly 17 m (56 ft). The model car brakes for about 55 m (180 ft), from 54 to 45 mph. The computed line turns in from the left side, takes a late apex, about 90 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 195° right
- Tightest radius
- 17 m
- Model speed
- 54 → 45 mph
- Braking (model)
- 55 m
- Grade
- 0.0%
- C6
Thermal Club
↰ LeftslowchicaneTRACK numbering
A slow left-hand chicane that turns about 146°, tightening to a radius of roughly 16 m (52 ft). The model car brakes for about 75 m (246 ft), from 81 to 41 mph. The computed line turns in from the right side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 146° left
- Tightest radius
- 16 m
- Model speed
- 81 → 41 mph
- Braking (model)
- 75 m
- Grade
- +0.1%
- C7
Thermal Club
↰ LeftslowchicaneTRACK numbering
A slow left-hand chicane that turns about 114°, tightening to a radius of roughly 16 m (52 ft). The model car brakes for about 25 m (82 ft), from 55 to 46 mph. The computed line turns in from the right side, takes a late apex, about 55 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 114° left
- Tightest radius
- 16 m
- Model speed
- 55 → 46 mph
- Braking (model)
- 25 m
- Grade
- +0.3%
- C8
Thermal Club
↰ LeftslowhairpinTRACK numbering
A slow left-hand hairpin that turns about 187°, tightening to a radius of roughly 22 m (72 ft). The model car brakes for about 100 m (328 ft), from 89 to 42 mph. The computed line turns in from the right side, takes a late apex, about 10 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 187° left
- Tightest radius
- 22 m
- Model speed
- 89 → 42 mph
- Braking (model)
- 100 m
- Grade
- 0.0%
- C9
Thermal Club
↰ LeftslowhairpinTRACK numbering
A slow left-hand hairpin that turns about 166°, tightening to a radius of roughly 31 m (102 ft). The model car brakes for about 175 m (574 ft), from 128 to 49 mph. The computed line turns in from the right side, takes a late apex, about 10 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 166° left
- Tightest radius
- 31 m
- Model speed
- 128 → 49 mph
- Braking (model)
- 175 m
- Grade
- +0.1%
- C10
Thermal Club
↱ RightmediumhairpinTRACK numbering
A medium right-hand hairpin that turns about 159°, tightening to a radius of roughly 36 m (118 ft). The model car barely brakes here, carrying about 60 mph: a lift or a confident throttle balance. The computed line turns in from the left side, takes an early apex, about 195 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 159° right
- Tightest radius
- 36 m
- Model speed
- ≈ 60 mph
- Braking (model)
- Lift / none
- Grade
- +0.2%
- C11
Thermal Club
↰ LeftmediumhairpinTRACK numbering
A medium left-hand hairpin that turns about 166°, tightening to a radius of roughly 35 m (115 ft). The model car brakes for about 65 m (213 ft), from 75 to 68 mph. The computed line turns in from the right side, takes a late apex, about 295 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 166° left
- Tightest radius
- 35 m
- Model speed
- 75 → 68 mph
- Braking (model)
- 65 m
- Grade
- +0.1%
- C12
Medium right-hander
↱ RightmediumessesTRACK numbering
A medium right-hand esses that turns about 98°, tightening to a radius of roughly 36 m (118 ft). The model car brakes for about 100 m (328 ft), from 96 to 58 mph. The computed line turns in from the left side, takes an early apex, about 15 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 98° right
- Tightest radius
- 36 m
- Model speed
- 96 → 58 mph
- Braking (model)
- 100 m
- Grade
- +0.2%
- C13
Medium right-hander
↱ RightmediumessesTRACK numbering
A medium right-hand esses that turns about 86°, tightening to a radius of roughly 45 m (148 ft). The model car brakes for about 170 m (558 ft), from 123 to 63 mph. The computed line turns in from the left side, takes an early apex, about 10 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 86° right
- Tightest radius
- 45 m
- Model speed
- 123 → 63 mph
- Braking (model)
- 170 m
- Grade
- 0.0%
- C14
Medium left-hander
↰ LeftmediumchicaneTRACK numbering
A medium left-hand chicane that turns about 85°, tightening to a radius of roughly 32 m (105 ft). The model car brakes for about 65 m (213 ft), from 80 to 55 mph. The computed line turns in from the right side, takes an early apex, about 20 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 85° left
- Tightest radius
- 32 m
- Model speed
- 80 → 55 mph
- Braking (model)
- 65 m
- Grade
- 0.0%
- C15
Slow left-hander
↰ LeftslowhairpinTRACK numbering
A slow left-hand hairpin that turns about 144°, tightening to a radius of roughly 20 m (66 ft). The model car brakes for about 85 m (279 ft), from 84 to 38 mph. The computed line turns in from the right side, takes an early apex, about 5 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 144° left
- Tightest radius
- 20 m
- Model speed
- 84 → 38 mph
- Braking (model)
- 85 m
- Grade
- +0.1%
- C16
Slow right-hander
↱ RightslowcornerTRACK numbering
A slow right-hand corner that turns about 100°, tightening to a radius of roughly 48 m (157 ft). The model car brakes for about 55 m (180 ft), from 81 to 42 mph. The computed line turns in from the left side, takes an early apex, about 10 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 100° right
- Tightest radius
- 48 m
- Model speed
- 81 → 42 mph
- Braking (model)
- 55 m
- Grade
- +0.1%
- C17
Slow left-hander
↰ LeftslowhairpinTRACK numbering
A slow left-hand hairpin that turns about 139°, tightening to a radius of roughly 12 m (39 ft). The model car brakes for about 80 m (262 ft), from 81 to 31 mph. The computed line turns in from the right side, takes an early apex, about 5 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 139° left
- Tightest radius
- 12 m
- Model speed
- 81 → 31 mph
- Braking (model)
- 80 m
- Grade
- 0.0%
- C18
Medium left-hander
↰ LeftmediumchicaneTRACK numbering
A medium left-hand chicane that turns about 120°, tightening to a radius of roughly 29 m (95 ft). The model car brakes for about 65 m (213 ft), from 83 to 53 mph. The computed line turns in from the right side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 120° left
- Tightest radius
- 29 m
- Model speed
- 83 → 53 mph
- Braking (model)
- 65 m
- Grade
- -0.3%
- C19
Medium left-hander
↰ LeftmediumchicaneTRACK numbering
A medium left-hand chicane that turns about 106°, tightening to a radius of roughly 29 m (95 ft). The model car brakes for about 65 m (213 ft), from 83 to 53 mph. The computed line turns in from the right side, takes an early apex, about 75 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 106° left
- Tightest radius
- 29 m
- Model speed
- 83 → 53 mph
- Braking (model)
- 65 m
- Grade
- -0.3%
- C20
Fast right-hander
↱ RightfastkinkTRACK numbering
A fast right-hand kink that turns about 29°, tightening to a radius of roughly 60 m (197 ft). The model car brakes for about 70 m (230 ft), from 104 to 84 mph. The computed line turns in from the left side, takes an apex close to the geometric apex, and lets the car run out to the left on exit.
- Turns
- 29° right
- Tightest radius
- 60 m
- Model speed
- 104 → 84 mph
- Braking (model)
- 70 m
- Grade
- -0.1%
- C21
Fast left-hander
↰ LeftfastessesTRACK numbering
A fast left-hand esses that turns about 45°, tightening to a radius of roughly 55 m (180 ft). The model car brakes for about 55 m (180 ft), from 93 to 82 mph. The computed line turns in from the right side, takes an early apex, about 25 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 45° left
- Tightest radius
- 55 m
- Model speed
- 93 → 82 mph
- Braking (model)
- 55 m
- Grade
- -0.1%
- C22
Medium right-hander
↱ RightmediumcornerTRACK numbering
A medium right-hand corner that turns about 88°, tightening to a radius of roughly 39 m (128 ft). The model car brakes for about 115 m (377 ft), from 100 to 61 mph. The computed line turns in from the left side, takes an early apex, about 25 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 88° right
- Tightest radius
- 39 m
- Model speed
- 100 → 61 mph
- Braking (model)
- 115 m
- Grade
- -0.1%
- C23
Thermal Club
↱ RightfastchicaneTRACK numbering
A fast right-hand chicane that turns about 77°, tightening to a radius of roughly 38 m (125 ft). The model car barely brakes here, carrying about 75 mph: a lift or a confident throttle balance. The computed line turns in from the left side, takes a late apex, about 35 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 77° right
- Tightest radius
- 38 m
- Model speed
- ≈ 75 mph
- Braking (model)
- Lift / none
- Grade
- +0.3%
- C24
Thermal Club
↱ RightmediumchicaneTRACK numbering
A medium right-hand chicane that turns about 100°, tightening to a radius of roughly 52 m (171 ft). The model car brakes for about 55 m (180 ft), from 88 to 70 mph. The computed line turns in from the left side, takes a late apex, about 55 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 100° right
- Tightest radius
- 52 m
- Model speed
- 88 → 70 mph
- Braking (model)
- 55 m
- Grade
- +0.3%
- 2 more minor corners aren’t listed.
05Configurations
Every mapped loop at Thermal.
TRACK finds each closed loop in the OpenStreetMap raceway network. Named layouts come from OSM circuit relations; the rest are named by length, and some may be combinations the venue never runs. Your first session confirms which one you drove.
Full circuit
4.50 mi7.24 kmCounter-clockwiseS/F EstimatedName inferred
Layout B · 5.0 km
3.10 mi4.99 kmCounter-clockwiseS/F EstimatedName inferred
Layout C · 4.2 km
2.61 mi4.21 kmDirection unknownS/F EstimatedName inferred
Layout D · 2.9 km
1.79 mi2.88 kmCounter-clockwiseS/F EstimatedName inferred
Layout E · 2.8 km
1.75 mi2.82 kmCounter-clockwiseS/F EstimatedName inferred
Layout F · 2.2 km
1.35 mi2.17 kmDirection unknownS/F EstimatedName inferred
06Time it with TRACK
Drive Thermal. TRACK knows where you are.
No setup and no transponder. Start a session in the paddock and TRACK recognises Thermal and the layout from your GPS trace, then times every lap and sector with a live delta to your best.
- 1DetectTRACK matches your first few hundred metres against every mapped layout at Thermal, including shared pavement between configurations.
- 2Confirm the lineThe start/finish line here is estimated. When you’re stopped, TRACK shows it on the map: accept it or tap to move it. You’re never asked while driving.
- 3Laps, timed retroactivelyLaps you drove before confirming are timed from the recorded trace, so you don’t lose your first session.
- 4Go furtherSync a GoPro for video with telemetry and let TRACK Engineer point out where the time is. External 10–25 Hz GPS receivers for tighter sectors are awaiting hardware validation.
- Venue and layout detection is tested on simulated drives over real OpenStreetMap circuits, not yet in a real car. Compatible GPS receivers
07Plan your trip
Getting there, staying, eating.
Nearby places for Thermal haven’t been loaded yet.
08Track days
Find an open track day at Thermal.
TRACK doesn’t copy event listings. An on-page calendar will come with an organizer data partnership.
Before your first day here
09Nearby tracks
Closest mapped venues.
- Chuckwalla Valley RacewayCalifornia · 49 mi away
- Streets of Willow SpringsCalifornia · 149 mi away
- Willow Springs International RacewayCalifornia · 149 mi away
- Spring Mountain Motor ResortNevada · 178 mi away
Straight-line distance between venues. All 96 tracks
FAQ
Thermal, answered.
How long is Thermal?
OpenStreetMap maps 6 closed loops at The Thermal Club, from 1.35 mi to 4.50 mi (7.24 km). These are mapped centerline lengths; the venue’s published figures can differ slightly.
How much elevation change is there at Thermal?
About 10 ft (3 m) between the lowest and highest points of the full circuit layout, from USGS 3DEP elevation data sampled every 25 m. The steepest stretch is around 1%.
Which direction does Thermal run?
The main mapped layout runs counter-clockwise, from one-way tagging in OpenStreetMap. Check the event’s driver briefing: some venues run reverse-direction days.
Can I time laps at Thermal with my phone?
Yes, with the TRACK iPhone app (beta). It recognises Thermal and the layout you’re driving from GPS, then times laps and sectors. A phone’s GPS is good for lap times; an external 10–25 Hz receiver tightens sector splits.
Where is the start/finish line at Thermal?
TRACK estimates the line from the mapped geometry (usually beside the pit lane, or on the longest straight). It isn’t verified on site, so the app asks you to confirm or move it before timing your first session here.
How do I find track days at Thermal?
Clubs and organizers list HPDE, track days and club races on MotorsportReg. The venue’s own calendar lists its events too. TRACK doesn’t list events itself.
Where can I stay near Thermal?
This page lists hotels, campgrounds, restaurants, fuel and parts stores near Thermal from OpenStreetMap, with straight-line distances. Book early for big event weekends.
Track geometry and nearby places: © OpenStreetMap contributors, available under the Open Database License 1.0 (via the TRACK Atlas, snapshot 2026-10-17). Elevation: USGS 3DEP (public domain). Lengths are mapped centerlines, not official figures. The computed line and speed trace are a model. No start/finish line has been verified on site.
TRACK is not affiliated with or endorsed by The Thermal Club, MotorsportReg or any business listed here. The venue name identifies the location only and belongs to its owner. TRACK shows no lap records or official results for this venue. Driving advice is general: your instructor, the event’s rules and the venue’s rules come first.