NASCAR is set to roll out a series of rule adjustments this weekend at Iowa Speedway that will reshape how stages conclude during the remainder of the season.
If a natural caution occurs with ten or fewer laps left in either Stage 1 or Stage 2, the stage will be declared finished at the moment the caution is called, and that caution will serve as the official stage break.
How the New System Works
When the field returns to the start/finish line under yellow, the race leader receives a green‑and‑white checkered flag in addition to the yellow flag, signaling the end of the stage.
The top‑10 finishers for stage points will be determined using scoring loops and video replay, mirroring the process used for awarding stage points throughout the year.
Why the Change Matters
The move follows fan feedback from the July Brickyard 400 in Indianapolis, where back‑to‑back cautions turned portions of the race into prolonged periods under yellow, dampening the on‑track action.
By ending stages early and reducing the length of caution periods, NASCAR hopes to deliver more green‑flag racing, a key driver of fan engagement and excitement.