Compare laps and read the delta chart

The Compare tab answers the only question that matters: where is one lap faster than another?

Steps

1. Open a session and go to Compare.
2. The Reference lap starts as your best lap; the Compare lap is the one you put against it. Change either from its dropdown.
3. Read the two charts, which are plotted by distance around the lap:
   • Speed — both laps' speed traces overlaid. Where the traces separate, the laps were driven differently.
   • Delta — the running time gap. Where the delta line climbs, the comparison lap is losing time; where it falls, it's gaining.
4. Scrub along the chart — the track map below the charts shows exactly where on the circuit you are, so "the delta jumps here" becomes "I'm losing it at Turn 3 exit".

The map below the charts

The map card has two modes:

• Time — the compare lap's line coloured green where it's gaining time on the reference and red where it's losing.
• Racing line — each lap's own line, so you can see where you turned in, clipped the apex, or ran wide differently.

Open it full screen and pinch to zoom into a corner when the lines sit too close to tell apart.

How to find time

Look for the steepest rises in the delta line and check the speed trace there: braked too early, rolled less speed through the apex, or got on the power later — the shape of the speed traces tells you which.

Free and Pro

Free compares one reference lap against one other lap. Pro adds + Add lap: up to four laps from the same session compared against the reference at once. See What's included in Free vs Pro.