BREAKING: Kyle Larson Faces Potential Disqualification and $200,000 Fine After Lawsuit Alleging Tire Manipulation
NASCAR has confirmed the existence of a lawsuit alleging that Kyle Larson illegally adjusted rear tire temperature during the 2025 NASCAR Cup Series season. The filing claims that the adjustment provided a competitive advantage. If the allegations are upheld through NASCAR’s disciplinary process and any legal proceedings, Larson could be stripped of a race victory, hit with a $200,000 fine, and even face the loss of his championship.
What NASCAR has said so far
NASCAR acknowledged receipt of the lawsuit and said it will review any information relevant to its rules and enforcement process. The sanction range for technical or rules violations varies, and NASCAR reserves the right to impose penalties after a formal review. The organization also typically follows an internal procedure that may include an inspection, a hearing, and an appeals process.
What the lawsuit alleges
According to the confirmed filing, the suit accuses Larson or his team of making unauthorized adjustments to rear tire temperature between inspection and competition. The allegation centers on deliberate manipulation intended to alter grip, tire wear, or handling characteristics in a way that circumvents NASCAR technical regulations.

Why rear tire temperature matters
- Rear tire temperature affects traction, handling, and tire degradation during a race.
- Higher temperatures can increase grip briefly but may accelerate wear; lower or managed temperatures can extend performance windows.
- NASCAR regulates tire preparation and on-car adjustments to maintain fairness and safety; intentional manipulation can be seen as a serious competitive infraction.
Kyle Larson responds
Kyle Larson has publicly addressed the situation, denying intentional wrongdoing and saying he will cooperate with investigators. He said he and his team will contest any conclusions they believe to be inaccurate and expect due process to determine the facts.
Larson’s response framed the matter as a technical and legal issue that must be resolved through proper channels rather than by public assumption. He emphasized cooperation and the desire for clarity for fans and competitors alike.
Potential outcomes and timeline
The dispute can unfold along several tracks: the legal case itself, NASCAR’s internal review, and any following appeals. Possible outcomes include:
- No penalty if NASCAR and courts determine insufficient evidence of a rules violation.
- Monetary fines and points penalties that could affect standings.
- Stripping of race wins or official disqualification from specific events.
- Revocation or alteration of championship standings if penalties include points removal or disqualification retroactive to past events.
Timing is uncertain and depends on the pace of investigations, discovery in the lawsuit, and procedural deadlines for hearings and appeals. Fans should expect developments to emerge over weeks rather than days.
What this means for the Cup championship
Because points and wins determine championship outcomes, a successful challenge that leads to disqualification or points deductions could alter final standings. Revoking a title is an extreme step and would likely require clear, substantiated findings that a rules violation materially changed competitive results. Any such move would also be subject to appeal.
How NASCAR discipline typically works
- Initial inspection and evidence gathering by NASCAR officials.
- Notification to the team and drivers involved, with opportunities to respond.
- A formal hearing where evidence is presented and rulings are made.
- An appeals process that can modify or overturn initial sanctions.
What to watch next
Key items to follow include official statements from NASCAR, filings in the lawsuit, any formal charges or penalties announced, and responses from Larson’s team. Motorsport journalists and legal analysts will likely provide ongoing coverage as more records and testimony become available.

We will update this story as NASCAR and legal authorities release more information and as Larson and his team provide further comment.








