The NASCAR driver died suddenly on Thursday at 41 after contracting bacterial pneumonia that progressed into sepsis.

Kyle Busch had bacterial pneumonia for ‘days to weeks’ before he died, death certificate reveals

The NASCAR driver died suddenly on Thursday at 41 after contracting bacterial pneumonia that progressed into sepsis.

By Marina Watts

Marina Watts

Marina Watts is a news writer for with seven years experience covering entertainment, pop culture and celebrity news. Her previous work appears in PEOPLE, Bustle and Newsweek.

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May 27, 2026 4:41 p.m. ET

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Kyle Busch in Charlotte, N.C., in January 2026. Credit:

Jonathan Bachman/Getty

- New details surrounding the devastating "chain of events" leading to Kyle Busch's sudden death have been revealed.

- The medical examiner determined that he had bacterial pneumonia for "days to weeks" before he died.

- The NASCAR driver died on Thursday, May 21. He was 41.

New details surrounding Kyle Busch's death have been revealed.

The NASCAR driver, who died on Thursday at 41, was ill with bacterial pneumonia for "days to weeks" leading up to his death, according to the death certificate obtained by *Us Weekly*.

He suffered a devastating “chain of events” which led to his death, starting with the bacterial pneumonia diagnosis, which then progressed to sepsis, which Busch had for one day, the medical examiner believes.

The sepsis resulted in intravascular coagulation, which is a "rare blood clotting disorder," per the Cleveland Clinic, cutting off blood supply to major organs. If you don't receive treatment, it can become life-threatening. The clotting and dramatic blood loss led to hemorrhagic shock.

Kyle Busch in Dover, Del., in May 2026.

Sean Gardner/Getty

Busch was found on a bathroom floor of a training facility in Concord, N.C., on Wednesday, May 20. The 911 call reported "an individual with shortness of breath" that was "very hot" and "coughing up some blood," per TMZ Sports. An ambulance with the sirens off picked him up and brought him to a hospital in the Charlotte area.

Busch's death was announced on Thursday in a joint statement by the Busch family, NASCAR, and the Richard Childress Racing team, which was shared with **.

"On behalf of the Busch family, everyone at Richard Childress Racing and all of NASCAR, we are devastated to announce the sudden and tragic passing of Kyle Busch," the statement read. "Our entire NASCAR family is heartbroken by the loss of Kyle Busch. A future Hall of Famer, Kyle was a rare talent, one who comes along once in a generation. He was fierce, he was passionate, he was immensely skilled and he cared deeply about the sport and fans."

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"His sharp wit and competitive spirit sparked a deep emotional connection with race fans of every age, creating the proud and loyal 'Rowdy Nation,'" the statement continued, honoring his wife and children.

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"NASCAR lost a giant of the sport today, far too soon. During this incredibly difficult time, we ask everyone to respect the family’s privacy and continue to keep them in your thoughts and prayers," the statement concluded. "Further updates will be shared as appropriate."

Kyle Busch in Daytona Beach, Fla., in February 2026.

Chris Graythen/Getty

Two days later, Busch's cause of death was revealed.

"The medical evaluation provided to the Busch Family concluded that severe pneumonia progressed into sepsis, resulting in rapid and overwhelming associated complications," his family said in a statement via Associated Press on Saturday, also reiterating their ask for privacy during this difficult time.

On the day he died, Busch's family announced that he was hospitalized due to a "severe illness" and had to pull out of the Coca-Cola 600 at Charlotte Motor Speedway on Saturday.

Busch is survived by his wife, Samantha, and their children, Brexton and Lennix.

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