Sam Hornish Jr. won the Sam's Town 300, a NASCAR Nationwide Series event in Las Vegas.

LAS VEGAS — Sam Hornish Jr. didn’t know the name of Saturday’s Nationwide Series race until he went to the drivers’ meeting for the Sam’s Town 300.

“That’s a pretty good one for me to win,” he said he thought to himself. “Already got my name on the trophy.”

Hornish survived two restarts in the final 15 laps and held off Kyle Busch to win the second-tier NASCAR event at Las Vegas Motor Speedway.

Hornish led 114 laps in his second career Nationwide victory, but needed a strong finish to outrun Busch, the hometown driver who won the Nationwide race last weekend in Arizona.

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Hornish attributed the victory to his dominant car, all the more impressive since the drivers got almost no practice on the 1.5-mile track because of Friday’s rain.

“You dream about having cars like this,” Hornish said. “I think I used more energy celebrating than I did actually driving the car today.”

Hornish and Busch both went aggressively after the final restart with seven laps to go, with Busch briefly nudging ahead before Hornish reclaimed the lead with five laps left. Hornish got clear of Busch and finished comfortably in a caution-filled race.

With his third top-10 finish in three races this season, Hornish moved atop the points race and gave owner Roger Penske his first victory at Las Vegas in any NASCAR series — and Penske’s first victory since moving from Dodge to Ford in the offseason.