9 cars max · lowest stake pitted every lap · 3% rake · 20% to the pot · the rest split across the field
A pit, with real numbers
Six cars running: 40,000 · 30,000 · 22,000 · 18,000 · 15,000 · 12,000. The flag drops and car on 12,000 is pitted: 360 rake, 2,400 to the pot, 9,240 split five ways. Every car still running gains +1,848 — the field is now 41,848 · 31,848 · 23,848 · 19,848 · 16,848.
Next lap the 16,848 is pitted: 505 rake, 3,370 to the pot (5,770 now), 12,973 split four ways — +3,243 each. Laps keep going like that until one car is left.
That car takes its stake, every split it collected, and the whole pot.