Kyle Busch survived a second lap accident to take his eighth NASCAR Cup series series in Bristol.
The Joe Gibbs Toyota driver led home brother Kurt Busch and made the call to stay outside while his closest challengers pitted for new tires during a warning period in the last 20 laps.
Busch, who has more victories at Bristol than any other active driver, was overtaken by a second-round collision caused by William Byron breaking loose in the front row and collecting Aric Almirola. Busch and Ricky Stenhouse Jr. came after that.
Despite being in the pile, Busch was back in the top 10 in the 93rd lap of the 500-lap race, but only in the 381 did he take charge of the race for the first time.
His slow pace in front, however, was weak and within 30 laps he was passed by both Clint Bowyer and Joey Logano.
A look back in the 411 round, caused by Kyle Larson, returned the lead to Busch, who was the first to be promoted after leader Denny Hamlin had driven the pit road during the yellow flag period.
Again, Busch was unable to hold onto the lead for a longer period, after restarting the Penske pair Brad Keselowski and Logano 10 laps.
A final warning period in round 479 proved crucial, with Logano, Keselowski as well as Ryan Blaney's third Penske entry who all opted for tires while Busch continued to leave the track. The call turned out to be vital, because Busch was able to maintain the lead until the finish of the race.
Runner-up Kurt Busch came close to beating his younger brother, but a brush with the wall with four rounds to go ended all hope that he would win.
Phase 2 winner Logano finished third and made good use of his new tires at the end of the race but didn't have time to take on a new challenge for the win.
Blaney, who set the all-time track record in the second qualifying session, led a race high of 158 laps, finished fourth. He remains the driver with the most laps without winning this season.
Hamlin came back from his penalty and scored his fifth top-five finish of the year.
Paul Menard was in sixth place, one place ahead of Clint Bowyer, who had a fast car, but was bothered by handling problems most of the day and provided the penultimate warning of the day after his front right tire fell.
Daniel Suarez, Ryan Newman and Jimmie Johnson complete the top 10.
Pole-keeper Chase Elliott just missed a top 10 finish in 11th place, Matt DiBenedetto finished as a strong 12th.
Kevin Harvick, who had to start in the back and take an early drive-through penalty after his car was not inspected three times before the race, became 13th.
Ty Dillon, who won a surprising Phase 1 victory after a photo finish with Bowyer, finished 15th.
Keselowski, who was the leader for much of the race and led 40 laps, was classed 18th and a lap eliminated after receiving a late-race penalty for ignoring the starting instructions.
|1||Kyle Busch||Joe Gibbs Racing||Toyota||500|
|2||Kurt Busch||Chip Ganassi Racing||Chevrolet||500|
|3||Joey Logano||Team Penske||ford||500|
|4||Ryan Blaney||Team Penske||ford||500|
|5||Denny Hamlin||Joe Gibbs Racing||Toyota||500|
|6||Paul Menard||Wood Brothers Racing||ford||500|
|7||Clint Bowyer||Stewart-Haas Racing||ford||500|
|8||Daniel Suarez||Stewart-Haas Racing||ford||500|
|9||Ryan Newman||Roush Fenway Racing||ford||500|
|10||Jimmie Johnson||Hendrick Motorsports||Chevrolet||500|
|11||Chase Elliott||Hendrick Motorsports||Chevrolet||500|
|12||Matt DiBenedetto||Leavine Family Racing||Toyota||500|
|13||Kevin Harvick||Stewart-Haas Racing||ford||500|
|14||Austin Dillon||Richard Childress Racing||Chevrolet||500|
|15||Ty Dillon||Germain Racing||Chevrolet||500|
|16||William Byron||Hendrick Motorsports||Chevrolet||500|
|17||Martin Truex Jr.||Joe Gibbs Racing||Toyota||499|
|18||Brad Keselowski||Team Penske||ford||499|
|19||Kyle Larson||Chip Ganassi Racing||Chevrolet||499|
|20||Darrell Wallace Jr.||Richard Petty Motorsports||Chevrolet||499|
|21||David Ragan||Front Row Motorsports||ford||498|
|22||Chris Buescher||JTG Daugherty Racing||Chevrolet||498|
|23||Alex Bowman||Hendrick Motorsports||Chevrolet||497|
|24||Erik Jones||Joe Gibbs Racing||Toyota||497|
|25||Ryan Preece||JTG Daugherty Racing||Chevrolet||496|
|26||Landon Cassill||StarCom Racing||Chevrolet||495|
|27||Matt Tifft||Front Row Motorsports||ford||494|
|28||Michael McDowell||Front Row Motorsports||ford||493|
|29||Ross Chastain||Premium Motorsports||Chevrolet||491|
|30||Daniel Hemric||Richard Childress Racing||Chevrolet||490|
|31||Bayley Currey||Rick Ware Racing||Chevrolet||488|
|32||Quin Houff||Spire Motorsports||Chevrolet||476|
|33||Ricky Stenhouse Jr.||Roush Fenway Racing||ford||395|
|34||Corey LaJoie||Go FAS Racing||ford||308|
|35||Timmy Hill||MBM Motorsports||Toyota||239|
|36||Gray Gaulding||Petty Ware Racing||ford||142|
|37||Aric Almirola||Stewart-Haas Racing||ford||3|