The final NASCAR Cup Series practice at Chicagoland Speedway unfolded under clear skies, setting the stage for the upcoming EER0 400.
Riley Herbst claimed the fastest lap of the session, posting a speed of 178.065 mph, edging out a tightly contested field that included Bubba Wallace, Kyle Larson and Denny Hamlin.
Toyota’s Strong Showing
Toyota continued its recent dominance, placing six of its entries inside the top ten, a testament to the manufacturer’s aerodynamic upgrades and engine performance.
Among those standout performances, Tyler Reddick distinguished himself with the strongest long‑run speed, averaging 176.130 mph over a ten‑lap sequence, suggesting a potent race‑trim package.
The session also highlighted a deep pool of talent, with Ty Gibbs rounding out the top five at 177.754 mph and a group of drivers — including Corey Heim and Austin Cindric — joining Herbst among the fastest entries.
With the data now in hand, teams will fine‑tune setups for the race, balancing outright speed with long‑run stability. The proximity of the top speeds indicates a closely contested event, where strategic pit work and tire management could prove decisive.