Apex Lines
Apex Track Guides

Corner-by-corner guides,
computed.

Entry, minimum and exit speeds, brake points, radii and elevation for every corner of 19 US circuits — produced by running a motorcycle physics simulation over each track's real geometry, then written up corner by corner.

All figures are physics-simulation estimates, not measured data · generated 2026-07-08 · read the methodology

Free Laguna Seca track map with racing line

Laguna Seca

Monterey, California · 2.24 MI · 12 TURNS · SIM LAP 1:37.1

 Preview Circuit of The Americas track map with racing line

Circuit of The Americas

Austin, Texas · 3.42 MI · 24 TURNS · SIM LAP 2:26.6

 Preview Road America track map with racing line

Road America

Elkhart Lake, Wisconsin · 4.00 MI · 12 TURNS · SIM LAP 2:19.0

 Preview Road Atlanta track map with racing line

Road Atlanta

Braselton, Georgia · 2.57 MI · 9 TURNS · SIM LAP 1:36.2

 Free Barber Motorsports Park track map with racing line

Barber Motorsports Park

Leeds, Alabama · 2.31 MI · 16 TURNS · SIM LAP 1:39.9

 Preview Virginia International Raceway track map with racing line

Virginia International Raceway

Alton, Virginia · 3.28 MI · 13 TURNS · SIM LAP 2:07.6

 Preview Sonoma Raceway track map with racing line

Sonoma Raceway

Sonoma, California · 2.56 MI · 11 TURNS · SIM LAP 1:58.6

 Preview Willow Springs (Big Willow) track map with racing line

Willow Springs (Big Willow)

Rosamond, California · 2.45 MI · 10 TURNS · SIM LAP 1:28.8

 Preview Streets of Willow Springs track map with racing line

Streets of Willow Springs

Rosamond, California · 1.56 MI · 12 TURNS · SIM LAP 1:25.9

 Preview Buttonwillow Raceway Park track map with racing line

Buttonwillow Raceway Park

Buttonwillow, California · 3.08 MI · 13 TURNS · SIM LAP 2:05.5

 Preview Thunderhill East track map with racing line

Thunderhill East

Willows, California · 2.86 MI · 16 TURNS · SIM LAP 1:58.7

 Free The Ridge Motorsports Park track map with racing line

The Ridge Motorsports Park

Shelton, Washington · 2.45 MI · 15 TURNS · SIM LAP 1:56.7

 Preview Pittsburgh International Race Complex track map with racing line

Pittsburgh International Race Complex

Wampum, Pennsylvania · 2.72 MI · 14 TURNS · SIM LAP 1:54.8

 Preview New Jersey Motorsports Park - Thunderbolt track map with racing line

New Jersey Motorsports Park - Thunderbolt

Millville, New Jersey · 2.17 MI · 14 TURNS · SIM LAP 1:31.6

 Preview Mid-Ohio Sports Car Course track map with racing line

Mid-Ohio Sports Car Course

Lexington, Ohio · 2.25 MI · 12 TURNS · SIM LAP 1:34.7

 Preview Watkins Glen International track map with racing line

Watkins Glen International

Watkins Glen, New York · 3.40 MI · 13 TURNS · SIM LAP 2:07.3

 Preview Sebring International Raceway track map with racing line

Sebring International Raceway

Sebring, Florida · 3.64 MI · 14 TURNS · SIM LAP 2:14.7

 Preview Thunderhill West track map with racing line

Thunderhill West

Willows, California · 1.66 MI · 10 TURNS · SIM LAP 1:24.7

 Preview Thunderhill Full Course track map with racing line

Thunderhill Full Course

Willows, California · 4.56 MI · 29 TURNS · SIM LAP 3:25.0
All-Access · founding price

Every corner of every guide, forever.

All 19 track guides fully unlocked, as downloadable print-ready HTML plus CSV corner tables — and free updates as new tracks are added.

$59 lifetime all-access · or $12 for a single track

Get the pack →

TRACK OUTLINE © OPENSTREETMAP CONTRIBUTORS (ODBL)

FAQ

Straight answers.

Are these real lap times or measured data?

No. Every number is a physics-simulation estimate: a quasi-steady-state point-mass motorcycle model run over each circuit's real geometry with stated tire, power and drag assumptions. Simulated liter-bike laps were checked against published motorcycle lap records and land within roughly 0–25% of them — the full comparison table is on the methodology page.

What's free and what's paid?

Three full guides — Laguna Seca, Barber Motorsports Park and The Ridge Motorsports Park — are completely free. Every other guide shows its three biggest braking-zone corners free, with full data tables on all corners. The $59 all-access pack unlocks every corner of every guide as a download; a single track is $12.

Where does the track data come from?

Circuit outlines are derived from OpenStreetMap (© OpenStreetMap contributors, ODbL). The racing line, speeds and brake points are computed on top of that geometry by our simulation — they are estimates, and the guides are independent of any track or series.

Is this riding instruction?

No. The guides are reference data for studying a circuit before you ride it. Conditions, traffic, your bike and your skill all differ from the model's assumptions. Always ride within your limits and follow your track organization's instructions.