Kyle Busch died of pneumonia leading to complications from sepsis
NASCAR driver Kyle Busch, 41, tragically died from severe pneumonia that progressed to sepsis, his family has confirmed. Dr. Cedric Rutland, a pulmonary critical care physician and spokesperson for the American Lung Association, explains how inflammation and infection caused by pneumonia can overwhelm the body.
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Samantha Busch, the wife of NASCAR driver Kyle Busch, made her first public comments Friday, a little more than two weeks after his stunning death.
Busch, 41, died May 21 after a battle with pneumonia turned into sepsis. The two-time NASCAR champion collapsed during a simulation session in front of the Coca-Cola 600 and was rushed to hospital. He died the next day.
A private memorial was held for Busch earlier this week.
Samantha Busch took to Instagram on Friday for the first time since her husband’s death, thanking her fans for their support in a lengthy post:
NASCAR AND RACING WORLD REACT TO SHOCKING DEATH OF KYLE BUSCH AT 41: ‘CANNOT UNDERSTAND THIS NEWS’
NASCAR Cup Series driver Kyle Busch and his wife Samantha stand before the start of the 1000Bulbs.com 500 at Talladega Superspeedway in Talladega, Alabama on October 14, 2018. (Jasen Vinlove/USA TODAY Sports)
“As a family, we wanted to take a moment to thank you. The prayers, messages, flowers, meals, hugs and countless acts of kindness have carried us through the most heartbreaking days of our lives. Even though our hearts are absolutely broken, we have felt God’s presence and tight arms around us through each of you.
“The love that has surrounded our family during this unimaginable time has brought comfort in the midst of so much pain. Knowing the impact Kyle has had on others and seeing how they honor him through each unique act of generosity is a true testament to how special Kyle is to so many.
“There are times when the weight of this loss seems impossible to bear, but time and time again, God, through all of you, has shown us that we are not alone. From family and friends to fans and complete strangers, thank you for coming for us. Thank you for loving our family so well. Thank you for loving Kyle. Thank you for honoring him.
“We may never find the words to fully express what your support means to us, but please know that we are deeply grateful.”
Kyle Busch’s death continues to shake the NASCAR world
Busch was a two-time Cup champion and undoubtedly a future Hall of Famer. He had competed in the Cup Series since 2004, making 762 career starts with 63 victories.
The 41-year-old won the championship in 2015 and 2019 and has 234 victories across the three national NASCAR series.
Busch is the all-time record holder for victories in the NASCAR O’Reilly Auto Parts Series (102) and the NASCAR Craftsman Truck Series (69).
Kyle Busch, driver of the No. 18 Skittles Toyota, stands on the grid with his wife, Samantha, and son, Brexton, before the Monster Energy NASCAR Cup Series Camping World 500 at Phoenix International Raceway in Avondale, Arizona on March 19, 2017. (Jonathan Ferrey/Getty Images)
Busch’s 234th and final NASCAR victory came at Dover a week before his death, when he led 147 laps in a dominant Truck Series victory.
“You never know when the last one will be,” Busch said after the victory.
Busch made his mark in NASCAR during his time at Joe Gibbs Racing, where he spent the majority of his career and won both championships. He left JGR for Richard Childress Racing after the 2022 season, and won three times in his first season.
Busch’s last Cup Series victory came in June 2023. Although he has struggled for much of this season, he started on the pole in February’s Daytona 500 and was coming off a season-best eighth finish four weeks ago at Watkins Glen.
NASCAR Hall of Famer Richard Childress, Samantha Busch, Brexton Busch and NASCAR CEO Steve O’Donnell stand on the grid during a memorial ceremony for Kyle Busch before the Coca-Cola 600 at Charlotte Motor Speedway in Concord, North Carolina on May 24, 2026. (Jonathan Bachman/Getty Images)
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Kyle’s 11-year-old son Brexton returned to the circuit earlier this week for the first time since his father’s death.
Richard Childress Racing announced last month that Busch’s No. 8 would be permanently suspended unless Brexton wanted to use it if he entered the series.
