How much fuel the distance needs, whether the tank covers it, and — when you want it — how many stops the race is worth and which lap to come in on.
| Stops | Stint | Race time | In the pits | Lost to tyres | vs best |
|---|
A constant burn rate, which is exactly why the margin exists — traffic, a tow and a harder first lap all cost more than the average. A timed race is counted as the whole laps that fit plus the one you are on when the clock runs out, because that lap still has to be fuelled.
Race time = laps × base lap + stops × pit loss + tyre degradation within each stint. Degradation is linear in stint age, so the nth lap of a stint costs n × deg — which is why splitting a race can be quicker even when the tyres never fall apart. Stints are split as evenly as the lap count allows, with the odd lap taken early while the tyres are young. It ignores fuel weight, track evolution, traffic and safety cars. A plan, not a prophecy.
Traces already measures your fuel burn per lap from your own uploaded stints (dev-stint.js regresses it out of your lap times). Wiring that into this box, so the number arrives filled in from your last race at this track and car, is the obvious next step and is not done yet.