Hamlin among three drivers sent to rear after Iowa inspection failures
Two NASCAR Cup Series teams failed pre-race inspection twice before the Iowa Corn 350, and three drivers — including reported championship leader Denny Hamlin — were sent to the rear at Iowa Speedway.

Two NASCAR Cup Series teams failed pre-race technical inspection twice before the Iowa Corn 350 at Iowa Speedway. Three drivers, including Denny Hamlin, were ordered to start at the rear of the field. Chase Elliott and Brad Keselowski were also reportedly penalized, with the No. 60 RFK Racing Ford among the teams cited.
Three drivers, including championship contender Denny Hamlin, were ordered to start at the rear of the field for the Iowa Corn 350 at Iowa Speedway. The penalties followed pre-race technical inspection failures on Saturday afternoon, one day before the race, with two NASCAR Cup Series teams reported to have failed inspection twice. According to reports, Chase Elliott and Brad Keselowski were also sent to the rear, and the No. 60 RFK Racing Ford driven by Ryan Preece was among the cars that failed inspection. Hamlin entered the weekend as the Cup Series championship leader, reports say, making his penalty potentially significant for the title picture. The exact infractions that triggered the failures have not been confirmed, nor has the identity of the second penalized team beyond the No. 60. The penalties stripped the affected teams of track position at a short track where starting spot matters. It remains unclear why Hamlin was penalized when the reported inspection failures are tied to other teams, and whether further sanctions will follow.
Three drivers sent to the rear at Iowa Speedway
Two NASCAR Cup Series teams failed pre-race technical inspection twice on Saturday afternoon, one day before the Iowa Corn 350 at Iowa Speedway, according to reports. The failures triggered penalties that reshuffled the starting order for Sunday's race.
Three drivers were ordered to start at the rear of the field as a result. Denny Hamlin was confirmed among them. Reports also named Chase Elliott and Brad Keselowski as drivers sent to the rear at Iowa Speedway, though those names had not been independently confirmed at the time of publication.
The specific infractions that caused the teams to fail inspection twice have not been disclosed. It is also not yet clear why Hamlin was ordered to the rear, given that the inspection failures reported so far are tied to other teams. Whether NASCAR imposed additional penalties beyond the loss of starting position also remains unconfirmed. Details were still emerging as the race weekend continued.
RFK Racing's No. 60 among cars failing inspection
Among the cars reported to have failed pre-race technical inspection at Iowa Speedway was the No. 60 RFK Racing Ford driven by Ryan Preece. According to reports, the failure occurred on Saturday afternoon, one day before the Iowa Corn 350, with two NASCAR Cup Series teams said to have failed inspection twice ahead of the race.
The identity of the second penalized team has not been confirmed. Nor have the specific infractions that caused the cars to fail inspection on two separate attempts. NASCAR has not publicly detailed what inspectors found, and team representatives have not addressed the nature of the failures.
One open question is how Denny Hamlin came to be among the three drivers sent to the rear of the field. The reported inspection failures are tied to other teams, including RFK Racing's No. 60, and no explanation has yet emerged linking Hamlin's car to those infractions. Whether his penalty stemmed from a separate issue remains unclear.
What the penalties cost the teams
The practical cost of the inspection failures was track position. According to reports, the penalized teams lost a strategic advantage for the Iowa Corn 350, with their drivers ordered to start at the rear of the field at Iowa Speedway rather than in the positions they had earned. Starting at the back means more traffic to navigate, greater exposure to incidents, and a harder path to stage points and a strong finish — a meaningful setback on a short track where passing is at a premium. Reports did not specify precisely how the advantage was forfeited beyond the rear-of-field penalty, and it remains unclear whether NASCAR imposed any further sanctions, such as fines or points deductions, on the teams involved.
Hamlin's championship lead and what remains unconfirmed
According to reports, Denny Hamlin arrived at Iowa Speedway as the NASCAR Cup Series championship leader, which makes his rear-of-field start for the Iowa Corn 350 particularly significant. A points leader beginning a race at the back of the grid faces a far harder path to a strong finish, and any lost ground could reshape the title picture.
For now, though, the consequences remain unclear. How the penalties affected the final race results, and what they mean for Hamlin's championship standing, is not yet known. It has also not been confirmed whether NASCAR imposed any additional sanctions on the penalized teams beyond ordering them to start at the rear. Further details are expected as officials and teams address the inspection failures in the days ahead.
Frequently asked questions
Who had to start at the rear at the Iowa Corn 350?
Three drivers were ordered to start at the rear of the field for the Iowa Corn 350 at Iowa Speedway. Denny Hamlin is confirmed as one of them. According to reports, Chase Elliott and Brad Keselowski were also penalized and sent to the rear, though that detail has not been fully corroborated.
Why were NASCAR teams penalized before the Iowa race?
Two NASCAR Cup Series teams were penalized after failing pre-race technical inspection twice ahead of the Iowa race. The failures occurred on Saturday afternoon, one day before the Iowa Corn 350. The specific infractions that caused the failures have not been disclosed, and it is not yet clear which teams beyond the No. 60 RFK Racing Ford were involved.
Did Ryan Preece's No. 60 car fail inspection at Iowa?
According to reports, the No. 60 RFK Racing Ford driven by Ryan Preece was among the teams that failed pre-race inspection on Saturday before the Iowa Corn 350. This detail comes from limited sourcing and has not been independently confirmed. The identity of the second penalized team is not yet known.
Was Denny Hamlin the points leader before the Iowa race?
According to reports, Denny Hamlin entered the Iowa race weekend as the NASCAR Cup Series championship leader, though that detail has not been fully corroborated. He was one of three drivers ordered to start at the rear at Iowa Speedway. Why Hamlin was penalized, given the inspection failures are tied to other teams, is not yet clear.
What penalties did teams face for failing inspection at Iowa?
The confirmed penalty was being ordered to start at the rear of the field for the Iowa Corn 350. Reports suggest the inspection failures cost the penalized teams a strategic advantage for the race. Whether NASCAR imposed additional penalties, such as fines or points deductions, beyond the rear-of-field starts has not been confirmed.
Compiled from reporting by 4 independent outlets. How we source our reporting.




