The rankings use a rolling 12-week window and count the current week. That means older results age out automatically as new weeks come in.
Drivers are rewarded for finishing well, racing in deeper fields, and producing results in the most relevant class families. Newer results carry more weight than older ones inside the 12-week window.
Only a driver’s best weighted results count, so volume alone does not win. A small strength bonus can help, but it is intentionally limited.
Sportsman classes are excluded, and outside national or major events should only help when the driver is also active locally in the Wisconsin system.