Hamlin encouraged the sanctioning body to react to the lack of professionalism seen in the NASCAR Xfinity race at Martinsville or risk it happening again.

Darlington, South Carolina. Schedule: Saturday, practice, 12:35 p.m., qualifying, 1:40 p.m.; Sunday, race, 3 p.m. (FS1). Track: Darlington Raceway. Race distance: 293 laps, 400.24 miles. Last year: Brad Keselowski broke his three-year losing streak while keeping Ty Gibbs at bay in the final

Denny Hamlin, one of the longest-tenured drivers on the NASCAR grid, has always pushed for improvements in racing dynamics—especially in the Next Gen era. A fan of drafting-style racing, Hamlin understands the role of speed in determining race outcomes.