How many stops, and can you make it one fewer?
Put in the race length, your lap time and your fuel numbers, and this works out your stints and stops — plus the bit that actually wins endurance races: exactly how much fuel you'd have to save to drop a stop, and how close you are to being forced into an extra one.
Where you sit on fuel
What each stint length needs
These are your baseline figures at the top of the page — the fuel per lap and lap time in the main boxes. With a team there is no single burn to quote, so this table stays on one driver's numbers rather than averaging everyone into a figure nobody is driving to. The stint plan below does use each driver's own.
| Laps per stint | Stints | Stops | Fuel per lap needed | vs your pace |
|---|
Your drivers
Each driver's own numbers. Leave a box empty and it uses the figures above, so you can put in the one driver who is heavy on fuel and leave the rest.
| # | Name | Fuel per lap gal | Average lap | Pit lap |
|---|
Missed the button? Put the time it happened in here and press. Before the race it starts the race from that moment — for a green flag you missed, or a session you joined halfway through. Once the race is running it starts the next driver's stint, for when somebody got in the car and nobody pressed anything.
The stint plan
| Stint | Driver | Laps | Race laps | Starts at | Duration | Fuel on board | Elapsed at stop | Actual laps | Incidents |
|---|
Who does what
| Driver | Stints | Laps | Share | In the car | Fuel used | Fair share | Incidents |
|---|
iRacing's fair share rule. In a team event needing two or more drivers, every declared driver must complete at least 25% of an equal share of the team's total laps — equal share being the team's completed laps divided by the number of drivers, and fractions rounding up. Miss it and the team is disqualified after the race, however the car finished.
The detail
How the stop count works. A stint is limited by whichever runs out
first — fuel or tyres. Laps per stint is whole laps on a usable tank
(capacity minus your reserve), so stops only change when that whole number changes.
That's why the fuel-saving target is often much closer than it feels: shaving a few
hundredths per lap can be worth a whole pit stop, or nothing at all.
Timed races assume you take the flag and complete the lap you're on,
so the lap count is rounded up. Fuel figures include your reserve, so the tank should
still have that much left when you cross the line.