NASCAR champion Kyle Busch was a fierce competitor on the track and brought that same fervor to his roles as a husband, father, and brother.
The racing star unexpectedly died on Thursday, May 21, after being hospitalized for an unspecified but “severe” illness, NASCAR confirmed. “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,” the series, his family, and team Richard Childress Racing said in a statement.
Busch is statistically one of the greatest drivers in NASCAR history, winning 63 races in its premier Cup series (ninth all-time) and a record 234 races across its three primary touring series. On track, he was known as “Rowdy” for his aggressive driving style and often unapologetic behavior.
But away from his race car, he was known as a family man to his wife, Samantha, and their two children, son Brexton and daughter Lennix. He also formed one of the most potent sibling duos in NASCAR history with his older brother, Kurt Busch.
Here’s everything you need to know about Kyle’s family.
Wife Samantha Busch
Kyle Busch married Samantha Sarcinella on December 31, 2010. The couple had met three years earlier at a promotional event at Indianapolis Motor Speedway.
Samantha, then a college student at Purdue University, was working for a model agency when Kyle asked his public relations representative to invite her for a ride in the pace car that leads the field to the start of a race. “I remember it being crazy hot out, so when a nice lady came to me when my line was done and asked if I wanted to go for a ride, the thought of AC had me running before even registering going fast,” Samantha recalled, according to Us Weekly. Kyle eventually got her phone number, too, and they began dating.
Samantha, 39, frequently supported Kyle at races, cheering from his team pit box. She has been candid about their relationship behind the scenes, including her struggles with infertility. She previously told People in 2021 she experienced a miscarriage and multiple failed in-vitro fertilization (IVF) treatments, which put a strain on their relationship and brought them close to divorce.
“Kyle was sad but not broken the way I was,” Samantha said. “I was angry with him for being stoic.”
The couple stayed together, however, and ultimately had two children. Samantha is now an “entrepreneur, lifestyle blogger, IVF advocate, philanthropist, and co-owner of a professional race team,” according to her professional bio. In addition to building a strong social media following, she launched her own online clothing brand called Murph Boutique, now known as Avanti the Label, in 2017.
Son Brexton Busch
Kyle and Samantha’s only son, Brexton Locke Busch, was born on May 18, 2015.
Like his dad, Brexton is a promising driving prospect. He began competing at age five on dirt tracks in North Carolina. In 2024, he won 48 races across multiple styles of racing, including open-wheel sprint cars. He also has a sponsorship contract with SERVPRO.
Kyle and Brexton, then 9, raced each other for the first time in March 2025 at Millbridge Speedway in Salisbury, North Carolina. Kyle finished third, but Brexton wasn’t far behind in sixth.
“I wasn’t very good, so I wasn’t making time going to the front, passing guys or getting closer to those in front of me to make a move,” Kyle told NASCAR.com. “So I was just kind of holding my own riding, but trying as hard as I could. And if he was right there, then that’s pretty good.”
Although he still has a few years before he is ready to go NASCAR racing—Kyle made his debut in the sport’s top series at age 18—Brexton, now 11, might already have a car waiting. When Kyle announced his move from Joe Gibbs Racing to Richard Childress Racing in 2022, team owner Richard Childress presented Brexton with an unofficial contract for an option to drive for RCR “in the future.”
Daughter Lennix Busch
Kyle and Samantha’s daughter Lennix Key Busch, 4, was born via surrogate on May 10, 2022.
"We're beyond overjoyed that God has blessed us with our beautiful girl. Our tiny little peanut has a head full of crazy hair and a big brother waiting at home who can't wait to meet her!!!" Samantha and Kyle shared in a joint Instagram post shortly after her birth.
Despite her young age, Lennix has her own Instagram account showing off photos from the racetrack, her most recent birthday, and even Cinderella castle at Walt Disney World. She was often spotted alongside her mom and dad on pit road or in victory lane, including in February 2026 when Kyle playfully tossed her into the air after winning the NASCAR Truck Series race at EchoPark Speedway.
Kyle gave a sweet shoutout to his “crazy Lennix” in an Instagram post this past Mother’s Day. “You keep us laughing, keep us on our toes, and somehow make every day brighter at the same time," he wrote.
Brother Kurt Busch
Kyle Busch is expected to be a posthumous first-ballot inductee into the NASCAR Hall of Fame, where he will join older brother Kurt Busch.
Kurt, 47, broke into NASCAR’s top series as a rookie in 2001. Within three years, he became a champion by winning the first version of NASCAR’s 10-race playoff format, the Chase for the Cup. Kurt won 34 races total before retiring in 2023, citing concussion symptoms and other health reasons.
With Kyle’s two series titles, he and Kurt became one of only two pairs of brothers to win NASCAR Cup Series championships—along with Terry Labonte and Bobby Labonte.
On the track, the siblings had their own memorable dustups. When Kyle and Kurt accidentally wrecked during the 2007 NASCAR All-Star Challenge, they blamed each other for the crash and didn’t speak to each other for about a year.
“No real low point. It was me still trying to hold my ground as the older brother, and you still have more to learn,” Kurt told host Graham Bensinger. “And he, of course, like any little brother, has little-brother syndrome. ‘I’m gonna do everything better, faster, and quicker than you.’”
Kurt was inducted into the Hall of Fame in January 2026. During his speech, he said one of the things he most looked forward to was supporting his nephew Brexton’s racing career in retirement.
“Brexton Busch is definitely the next greatest thing happening,” he said.
Tyler Piccotti joined the Biography.com staff as an Associate News Editor and is now the News and Culture Editor. He previously worked as a reporter and copy editor for a daily newspaper recognized by the Associated Press Sports Editors. In his current role, he shares the true stories behind your favorite movies and TV shows and profiles rising musicians, actors, and athletes. When he's not working, you can find him at the nearest amusement park or movie theater and cheering on his favorite teams.
