Ideal Racing Line

Map background

Move / flip / scale Mouse drag Start heading

Scale track %

Background image

Show image Opacity Image width ft Rotation 0°

Upload a satellite screenshot of the circuit. Set “Mouse drag” to Move image to drag it, and scroll to scale it. Match its scale to a known distance, then trace it with segments. The image isn't kept after a page reload.

My tracks

Default width ft

ft min radius

Build the track as a sequence from the start/finish line (heading east). Corners are defined by radius and angle. If the loop doesn't close, Auto-close adds the shortest arc-straight-arc link.

Transfer track

Class preset

Presets are approximate typical Rotax MAX figures – tune to your own kart, engine, gearing and class minimum weight.

Grip peaks at the tyre's optimum track temperature and falls off when colder or hotter. Power scales with air density (temperature and altitude).

Saved setups (track + kart + conditions)

Run log (auto-saved when an ideal line finishes)

Auto-log

Ideal lap

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