ELKHART LAKE, Wis. -- Ty Gibbs already has won plenty in his young racing career, but the level of competition made the 19-year-old's latest victory particularly special.
Gibbs overtook NASCAR Cup Series champion Kyle Larson on the final lap of overtime Saturday at Road America for his fourth Xfinity Series victory of the season.
"To be able to beat him is just awesome," Gibbs said. "It's a dream come true."
The race featured a major wreck that affected about a third of the 38-car field.
Larson, competing in an Xfinity Series event for the first time since 2018, was leading when Cole Custer's brake failure resulted in a late caution flag that produced overtime.
Gibbs, the grandson of team owner Joe Gibbs, chased Larson for much of the overtime session, passed him early in the final lap and remained in front the rest of the way for his third career road-course win. Gibbs' winning margin was 0.858 seconds.
This winning charge was the latest step forward for Gibbs as he tries to learn what is necessary to live up to his lofty long-term ambitions, which go well beyond making it to the Cup Series.
"I want to be the best driver ever," Gibbs said. "That's what it takes. I've got to learn that to make another step to the top of the mountain."
Larson had decided to enter the Xfinity event to get more experience at Road America. He won the first two stages and was ahead for most of the race but couldn't maintain the lead in the final lap.
"He did a really good job executing, and I didn't," Larson said.
Gragson and Karam already had made contact a couple of times before the right side of Gragson's car hit the left side of Karam's vehicle, setting off a chain of events that altered the field.
Their Chevrolets eventually ended up sideways on the track as some cars managed to elude them while others got involved in multiple collisions amid a giant cloud of smoke. The Chevys of Landon Cassill and Myatt Snider both spun around on the track at one point. Brandon Brown had a major collision with Tyler Reddick.
"The 9 [Gragson] literally just drove into me in a straight line," Karam said over the radio after the crash. "He just hard-turned into me. What an idiot, man."
Karam had more to say later on about Gragson.
"It's ridiculous," Karam said. "I think he tried to take officiating or whatever in his own hands."
Gragson cited incidents both Saturday and in the past when Karam had initiated contact with him.
"I take responsibility and hate it for those guys, but we're fighting to race for a championship here," Gragson said. "I'm really over getting run over."
Brown climbed out of his car slowly and was down for a few minutes before getting himself up to undergo treatment after the wreck. He was treated at the infield care center and released along with Brett Moffitt, Cassill, Snider, Karam and Reddick.
"I couldn't really see anything until I saw the 48 when I plowed him," Brown said. "Just a real gut check. Lost my breath."