Kyle Busch, a prominent figure in NASCAR, passed away due to severe pneumonia that rapidly developed into sepsis, as stated by his family on Saturday. The medical evaluation provided to the Busch Family concluded that severe pneumonia progressed into sepsis, resulting in rapid and overwhelming associated complications, the Busch family’s statement disclosed.

Busch’s sudden death occurred on Thursday, following an incident where he lost consciousness at a General Motors facility in Concord, North Carolina during a driving simulator session. Known for his unrivaled record, Busch claimed more victories in NASCAR’s top three series than anyone else in history.

Sepsis, a grave medical condition, arises when the body reacts extremely to an infection, which can damage tissues and organs, as per the Centers for Disease Control and Prevention. This marks the family’s first official statement following the initial announcement on social media, stating he suffered a severe illness resulting in hospitalization and would miss the Coca-Cola 600 race this weekend, a major event in the NASCAR calendar.

On May 23, 2026, during the NASCAR Cup Series Coca-Cola 600 practice session at Charlotte Motor Speedway in Concord, North Carolina, an LED screen displayed a tribute to Busch. David Jensen captured the moment through images posted by Getty Images and ESPN.

According to a 911 call obtained by CBS News, Busch had been experiencing distressing symptoms a day before his demise. The emergency call revealed that an unidentified person had described Busch as having shortness of breath and overheated while coughing up blood. The caller stated, I’ve got an individual that’s shortness of breath, very hot, thinks he’s going to pass out, and he’s producing a little bit of blood, coughing up some blood, mentioning that Busch was conscious on the bathroom floor of the complex, as per the Cabarrus County Sheriff’s Office audio.

Two weeks prior, Busch’s situation had been alarming for those close to him. He was heard requesting medical assistance via radio during a Cup race at Watkins Glen. At the time, a TV broadcast had noted Busch’s struggle with a sinus cold. Despite these health challenges, Busch triumphed in the Craftsman Truck Series race at Dover Motor Speedway on May 15, shortly before his passing.

With Cup Series titles in 2015 and 2019 for Joe Gibbs Racing and being the all-time victory leader in the O’Reilly Auto Parts Series with 102 wins, alongside 69 wins in the Craftsman Truck Series, Busch stood atop NASCAR’s hierarchy. His total of 234 wins across NASCAR’s three top divisions underscores his extraordinary career.

Busch’s legacy will continue to inspire NASCAR and its fans, as they remember a driver who set the highest standard in the sport.