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Riley Herbst is disqualified from Sunday’s NASCAR Cup race at the Charlotte Motor Speedway Roval for failing post‑race weight inspection.
The penalty does not change the playoff picture, with all postseason drivers passing technical checks.
NASCAR finds the 23XI Racing No. 35 Toyota under minimum weight. Officials also dispatch Cole Custer’s Haas Factory Racing No. 41 Ford to the R&D Center for further analysis.

Herbst initially finishes 30th and collects seven points. The disqualification drops him to 37th and one point.
That promotes Erik Jones, Austin Dillon, Josh Bilicki, Cody Ware, Kyle Busch, Brad Keselowski, and Austin Cindric one position in the final classification.
Herbst’s race proves bruising even before inspection. A clash with Ty Dillon prompts retaliation under caution early on.
Later, contact at the frontstretch chicane exit sees Kyle Busch spin Herbst, compounding a difficult afternoon.
The ruling marks NASCAR’s first post‑race Cup disqualification since April, when Ryan Preece and Joey Logano lost results at Talladega.
Last season, Alex Bowman’s weight disqualification reshaped the playoffs, eliminating Bowman and reinstating Joey Logano. Charlotte avoids similar upheaval this time.
Minimum weight underpins competitive equity. A lighter car can accelerate, brake, and change direction faster, eroding parity across the field.
NASCAR enforces this through systematic in‑event checks and rigorous post‑race inspections, reflecting processes often contrasted in F1 vs NASCAR discussions.
Within the broader types of motorsports, NASCAR’s centralized R&D tear‑down remains a powerful deterrent against technical infringements.
For playoff teams, the inspection phase is uneventful. Contenders preserve their points and focus on upcoming rounds.
Teams receive a clear reminder: marginal gains in weight or specification risk severe penalties when stakes are highest.

John Martinez delivers real-time NASCAR Cup Series and Truck Series news, from live race updates to pit-lane strategy analysis. A graduate of the University of Northwestern Ohio’s Motorsports Technology program, he breaks down rule changes, driver tactics, and championship points with crystal-clear reporting.