First NASCAR Driver Diagnosed with CTE
Fred Lorenzen’s posthumous diagnosis marks the first case of stage 3 CTE identified in a professional NASCAR driver.
Updated on Oct. 21, 2026 in Alzheimer’s
Fred Lorenzen, a NASCAR legend who lived with dementia for two decades, has been posthumously diagnosed with stage 3 chronic traumatic encephalopathy (CTE). The diagnosis marks the first time a NASCAR driver has been officially confirmed with the condition.
Why it matters
This diagnosis highlights the potential long-term neurological risks associated with auto racing and provides a new resource for drivers and their families. The Lorenzen family has established a memorial helpline to assist others dealing with similar neurodegenerative symptoms.
A post-mortem brain tissue analysis performed by the Concussion and CTE Foundation identified stage 3 CTE in the late driver. While this confirms the diagnosis, the prevalence of similar neurodegenerative conditions among active and retired drivers remains under investigation.
The players
Fred Lorenzen
A legendary NASCAR driver who is the first in the sport to be officially diagnosed with stage 3 CTE.
Concussion and CTE Foundation
A research organization that conducted the post-mortem analysis and established a support helpline for drivers.
NASCAR
The primary sanctioning body for stock car racing that has declined to join the current research and support initiative.
Darrell Waltrip
A former professional race car driver who recently announced his own struggle with neurological issues.
The details
The analysis revealed that Lorenzen suffered from a specific subtype known as cortical-sparing CTE. This condition is characterized by distinctive brain tissue patterns that, in roughly 10% of cases, manifest as pronounced behavioral and movement-related symptoms. Lorenzen navigated these neurological challenges for 20 years before his death, with the findings now providing a clearer clinical picture of his long-term health history.
Timeline
December 18, 2024: Fred Lorenzen died.
January 2026: The Lorenzen family discussed the diagnosis with NASCAR leadership.
September 23, 2026: Darrell Waltrip announced his own diagnosis of neurological issues.
October 20, 2026: The Concussion and CTE Foundation announced Lorenzen's diagnosis.
Health Landscape
This finding aligns with extensive research from the Boston University CTE Center regarding repetitive head trauma in contact sports. It marks a significant shift in recognizing that the risks of neurodegenerative diseases extend beyond collision sports to other professional racing disciplines.
If you or a family member in a high-impact sport are experiencing unexplained behavioral or movement changes, it is worth discussing these symptoms with a neurologist. Early recognition of cognitive decline can lead to better supportive care, regardless of the underlying cause.
The takeaway
Understanding the long-term impact of head trauma is critical for retired athletes managing neurodegenerative symptoms. If you are concerned about persistent cognitive changes, consult your physician to track symptoms and discuss appropriate screening or support resources.
Further reading
For more on the latest research and support options, see the Alzheimer’s section.
