There was a time when the sight of a NASCAR Cup Series champion like Kyle Busch or Kevin Harvick dominating the lower circuits was routine, often overshadowing the full-time contenders. This constant Cup-washing of the Xfinity and Truck Series led NASCAR officials to eventually draw a firm line in the sand, dramatically restricting the elite Cup drivers from racing there.

Beginning the 2020 season, a new rule stated that any driver with three or more years of full-time Cup Series experience could compete just five races maximum in both the Xfinity Series and the Truck Series annually. This was a significant move, often unofficially dubbed the “Kyle Busch Rule” due to his record-breaking success in the lower tiers. But NASCAR has turned the tables again.

NASCAR promotes dual-series partic

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