Automotodrom Brno Trackday Dry

When you import a RaceChrono session file, we read your GPS position and timestamps to reconstruct where you were on track and when. From that, we compute:

Sector times — by detecting exactly where your GPS path crosses each track's split points.
Speed and acceleration — from how your position changes over time.
Lean angle — estimated from how sharply your path curves at a given speed. This is an estimate, not a measurement: RaceChrono phone/GPS recordings don't include real accelerometer data, so we can't measure lean angle directly.

The circuit map is drawn from the track's real outline (OpenStreetMap), with your actual GPS line overlaid on top — so you can see exactly where you rode, including any GPS drift.

No GPS or lap-timer data was recorded for this lap, so there's nothing real to overlay — no measured speed, acceleration, or lean angle.

What you're seeing is the track's real layout with estimated corner positions — useful for reference, but the corner numbers and any coloring on the map aren't derived from this lap's own data.

Import a RaceChrono or LapTrophy session next time to see your actual line, real sector splits, and measured speed/acceleration/lean angle.