Chase Briscoe took the lead with six laps to go and won Friday night’s Xfinity Series race at Bristol Motor Speedway, which marked the end of the regular season.

Briscoe passed Austin Cindric to assume the lead and went unchallenged to the checkered flag. The victory is his series-leading seventh of the season.

“I was so mad after last week (at Richmond),” Briscoe told NBCSN. “I told all the guys there ain’t no way we’re getting beat today. I was so mad after how we ran last week and I get on the internet all the time and see guys count us out after one bad race and I know what this team is capable. … I finished second here the last two races and I wanted to win here so bad and it’s awesome that I can actually celebrate it with all these race fans.”

The top five was completed by Ross Chastain, Cindric, Harrison Burton and Justin Allgaier.

More: Race results, playoff standings

Allgaier dominated the early portion of the race, leading 126 laps and winning the first two stages. But he lost the lead for good in the pits during the Stage 2 break.

Brandon Brown finished 12th and clinched the 12th and final playoff spot.

STAGE 1 WINNER: Justin Allgaier

STAGE 2 WINNER: Justin Allgaier

WHO HAD A GOOD RACE: Ross Chastain led three times for 117 laps, but had to settle for his fifth runner-up finish of the season without a win … Austin Cindric earned his 13th top-10 finish in the last 14 races … Harrison Burton earned his 13th top five of the season.

WHO HAD A BAD RACE: Brett Moffitt finished 27th after he had to pit three times in the opening laps and was penalized for taking fuel before the competition caution … BJ McLeod finished 34th after he was eliminated in a multi-car wreck that began when he made contact with teammate Jeffrey Earnhardt … Michael Annett finished 31st and Joe Graf Jr. placed 27th after they were involved in an incident on Lap 120.

QUOTE OF THE RACE: “I hit pit road and I wanted to cry.” – Ross Chastain after he finished second for the fifth time this year. He is winless entering the playoffs.

WHAT’S NEXT: The Xfinity playoffs open at Las Vegas Motor Speedway at 7:30 p.m. ET on Sept. 26 on NBCSN.