Jeff Gordon posted victories in two of the first three Cup races at Fontana

Jeff Gordon won the first premier series race at what is now known as Auto Club Speedway. At the time of the 1997 California 500 presented by NAPA, the track was known as California Speedway and Gordon led 113 of the 250 laps en route to the victory. Gordon has won at this track two other times with Cup victories in 1999 and 2004. In 24 races at Fontana, Gordon has 10 top-fives, 11 top-10s and two poles.

 

Plan your NASCAR weekend with these on-track times for Fontana

All times ET / BUY TICKETS / WEEKEND TRACK EVENTS / TV SCHEDULE

SUNDAY, MARCH 23:

PRE-RACE SCHEDULE
2:19:00 p.m. ET: Welcome by Auto Club Speedway President: Gillian Zucker
2:25:00 p.m. ET: NSCS Drivers Introductions with NASCAR Special Awards
3:00:00 p.m. ET: Introduction for Presentation of Colors by: California Army National Guard Color Guard
3:00:15 p.m. ET: Invocation by: Jeff Hamilton, MRO
3:00:45 p.m. ET: Intro for National Anthem 
3:01:00 p.m. ET: National Anthem by: Pia Toscano
3:02:35 p.m. ET: Fly-by TOT: The Blue Angels
3:07:00 p.m. ET: “Command to Start Engines” by: The Great Gonzo
3:16:00 p.m. ET: Start of the Auto Club 400 (200 laps, 400 miles)

ON TRACK
— 3 p.m. ET: Sprint Cup Series Auto Club 400 (200 laps, 400 miles), FOX on air at 2:30 p.m. ET (Get results)

PRESS CONFERENCE (Watch live)
— 6 p.m. ET approx.: NASCAR Sprint Cup Series post-race press conference

SATURDAY, MARCH 22:

ON TRACK
— 12:30-1:25 p.m. ET: NASCAR Sprint Cup Series practice, FOX Sports 1 (Get results)

– 1:40 p.m. ET: NASCAR Nationwide Series Coors Light Pole qualifying, FOX Sports 1 (Get results)

– 3:30-4:20 p.m. ET: NASCAR Sprint Cup Series final practice, FOX Sports 1 (Get results)

– 5 p.m. ET: NASCAR Nationwide Series TreatMyClot.com 300 (150 laps, 300 miles), ESPN on air at 4:30 p.m. ET (Get results)

PRESS CONFERENCE
— 7:15 p.m. ET approx.: NASCAR Nationwide Series post-race press conference

FRIDAY, MARCH 21:

ON TRACK
— 3-4:30 p.m. ET: NASCAR Sprint Cup Series practice, FOX Sports 1
 (Get results)
— 4:40-5:30 p.m. ET: NASCAR Nationwide Series practice, FOX Sports 1 (Get results)
— 6-7:25 p.m. ET: NASCAR Nationwide Series final practice, FOX Sports 1 (Get results)
— 7:40 p.m. ET: NASCAR Sprint Cup Series Coors Light Pole Qualifying, FOX Sports 1 (Get results)

GARAGECAM PRESENTED BY MOBIL 1
— 2:30 p.m. ET: NASCAR Sprint Cup Series GarageCam
— 4:10 p.m. ET: NASCAR Nationwide Series GarageCam

PRESS CONFERENCES
— 1:45 P.M. ET: Brian Vickers, Auto Club Speedway President Gillian Zucker, NASCAR Chief Sales Officer Jim O’Connell, Xarelto grount product director Gregg Ruppersberger
— 2 p.m. ET: Jimmie Johnson
— 2:15 p.m. ET: Kyle Larson
— 2:30 p.m. ET: Trevor Bayne
— 4:40 p.m. ET: Carl Edwards
— 5 p.m. ET: Denny Hamlin
— 8:40 p.m. ET approx.: NASCAR Sprint Cup Series post-qualifying press conference

MORE:

READ: Latest
NASCAR news

WATCH: Latest
NASCAR video

PLAY: NASCAR
Fantasy Live

FOLLOW LIVE: Get
RaceView

Daytona 500 winner finishes 24th at Bristol, loses the points lead

RELATED: Full race results | Series standings

BRISTOL, Tenn. — The tone of the alarmed voice over the radio told the story.

"Something’s broke," Dale Earnhardt Jr. shouted as his No. 88 car suddenly began to shake. Turns out, it wasn’t a broken part, but a shredded left-front tire — one of two Earnhardt suffered Sunday at Bristol Motor Speedway, in a rain-delayed, day-to-night marathon that brought the season-opening streak enjoyed by NASCAR’s most popular driver to an abrupt end.

Bidding to tie Richard Petty’s NASCAR record of four top-two finishes to open the season, Earnhardt never really got the chance. Despite a strong car early, the tire issues relegated Earnhardt to a 24th-place finish, four laps behind race winner Carl Edwards. It was the first bobble of the 2014 campaign for the Daytona 500 winner, who had finished second at Phoenix and Las Vegas and entered Bristol as the points leader in the NASCAR Sprint Cup Series.

But under a revamped Chase for the NASCAR Sprint Cup format in which Earnhardt’s Daytona victory likely guarantees him a berth, the disappointment over the finish was hardly what it might have been.

"As long as they’re telling the truth about if you win, you’re in, you ain’t worried about it," he said in the garage area as rain began to fall once again. "You ain’t worried about it — you either win, or you don’t win. Second (through) last doesn’t really matter. If you don’t win, you just go home and try again."

Earnhardt’s team will certainly go home and investigate what caused two tires to get chewed up. His Hendrick Motorsports teammate Jimmie Johnson had the tread come off a tire before the race was interrupted by a three-hour rain delay, leaving the six-time champion two laps down at the red flag and contributing to a 19th-place result. But Johnson lost a right-front, and according to Goodyear, crew chief Chad Knaus’ decision to take only lefts under a Lap 50 competition caution created a high-wear situation on a green track washed free of rubber by rain.

Complicating the situation was the fact that the No. 88 car seemed to return to its original form late in the race.

"It’s frustrating," said Steve Letarte, Earnhardt’s crew chief. "I’ve had cars that eat tires before in my career, but they normally eat them all day. So I don’t know how this one miraculously got better. Everybody has the same opportunity when they come to the race track. We’ve run well for three weeks, and we just couldn’t put together a good finish tonight."

Earnhardt said he couldn’t detect the root issue from the driver’s seat — all he knew was, the car was shaking up a storm. "Tires were just falling apart on the damn thing for a while. So I don’t know what else we could have done," he said.

"It ran fine the first part of the race, so it ain’t the green track, and all that (stuff). So we’ll just take it home, make sure nothing’s changed in the car. Otherwise, I don’t know what happed there. Just tore two left-front tires up, and it won’t run at all when that left-front tire came down to the cords."

With the finish, Earnhardt fell to second in the Sprint Cup standings, 10 points behind new leader Brad Keselowski. But he remains off to one of the best starts of his career, and having a race victory already in his pocket certainly mitigated the sting felt Sunday night.

"It definitely helps. We’re just shooting for wins," Letarte said. "I don’t think we had a winning car before that, but you never know. Nobody thought the 99 (team of Edwards) had a winning car, and they ended up winning. We just want to be in it and have an opportunity, and we just didn’t get to stay in it all day."

MORE:

READ: Latest
NASCAR news

WATCH: Latest
NASCAR video

PLAY: NASCAR
Fantasy Live

FOLLOW LIVE: Get
RaceView

NASCAR says it will investigate incident further

RELATED: Race results | Read NASCAR’s statement on the final caution

BRISTOL, Tenn. — A flagman leaning against a manual override switch in the flagstand inadvertently turned on the caution lights in the final laps at Bristol Motor Speedway, leading to the final yellow flag that froze the field before Carl Edwards‘ victory Sunday night.

That was the explanation from Robin Pemberton, NASCAR’s vice president for competition and racing development, after fans and competitors were left in the dark following a mysterious caution that came out at the end of a marathon day-to-night race plagued by roughly five hours of rain delays. The field was immediately frozen per NASCAR policy, and hard rain once again began to fall almost immediately afterward, ensuring Edwards’ first victory of the season.

"It appears that in the flagstand, one of the flag people had leaned on the switch that is the manual override for the caution lights, and so that happened," Pemberton said. "… That happened, and at that time when the flagstand realized that the caution lights were illuminated, the flag man threw the flag, and then after that happened we froze the field from the tower. "

Pemberton said most flagstands have a manual override switch controlling the caution lights, which are normally illuminated by race control before the caution flag is displayed. The switch in Bristol, he added, wasn’t secured properly. Once they realized the caution lights were on, NASCAR officials threw a full caution because operation of the lights had become compromised.

"We tried to turn them off, and we realized that the override switch was on and they were hung on caution," Pemberton said. "It was a stupid error."

NASCAR used video to review the situation, and made one change in the final running order, flipping Kasey Kahne and Jeff Gordon to seventh and eighth place, respectively. Pemberton said the caution was thrown six seconds after the lights were inadvertently turned on, and the field was frozen 20 seconds after the full caution was issued.

Not even the flagman, Pemberton said, was initially aware of why the caution was out. Winning crew chief Jimmy Fennig speculated at first that part of the electrical system had shorted due to all the rain Sunday, but that proved to not be the case. Rain came down hard almost immediately afterward, heading off a green-white-checkered finish Edwards did not want to see.

"I can tell you, for Robin and NASCAR to come up here and explain exactly what happened immediately after the race and just put it out there that, ‘Hey, it was a mistake and it was inadvertent,’ I think that says a lot about the state of the leadership of our sport," said Edwards, who lost a NASCAR Camping World Truck Series race to Dennis Setzer at Charlotte in 2004 when he slowed because a caution light was unintentionally illuminated.

"I was leading the last time that happened at Charlotte in a Truck race, and we got passed, and … (NASCAR) put out a press release saying, ‘We messed up, we apologize to Carl and his crew.’ And I think NASCAR, that was (10) years ago, and they still stand by their mistakes. And for them to come up here and say, ‘Hey, we messed up,’ that means a lot. As a sport, they make a lot of tough calls. We all do a lot of things where there’s a lot of room for mistakes, and so the outcome worked out for me, but even if it hadn’t, I’m glad to be part of something where they just say, ‘Hey, we screwed up.’ "

Pemberton said NASCAR would review the situation with the goal of preventing a similar episode in the future.

"We learn a lot of lessons, and when we learn a lesson like this, we’ll go in and further investigate some things," he said. "As you know, all the electronics that we’ve had and have installed in the trailers for freeze the field and all these other things … you still have to integrate (them) into the track facilities, so there’s probably some things that we needed to do to better secure that area where the manual override is on the lights."

MORE:

READ: Latest
NASCAR news

WATCH: Latest
NASCAR video

PLAY: NASCAR
Fantasy Live

FOLLOW LIVE: Get
RaceView

Six-time Sprint Cup Series champion will re-start 39th due to tire issues

RELATED: Race updates | Play NASCAR Fantasy Live | Sign up for RaceView today

BRISTOL, Tenn. — In the blink of an eye, Jimmie Johnson went from leading at Bristol Motor Speedway to multiple laps down due to a tire issue.

The six-time Sprint Cup Series champion led 44 laps early Sunday, but began slowing while running second to Matt Kenseth and pitted for an apparent flat right-front tire on the half-mile track. A caution for rain came out during the No. 48 team’s subsequent pit cycle, and Johnson was left two laps down in 39th place when the event was halted under a red flag. Johnson ended the night two laps down, in 19th place.

Over the radio after the incident, crew chief Chad Knaus told Johnson that the tire "just came apart. It’s not even flat. The tread came off of it. There’s nothing wrong with it. The rest of the tire’s great. But I’m sure that’s something we did. I’m sure that’s our fault."

The No. 48 team is no stranger to tire issues, most famously at Phoenix late in 2012 when a tire problem led to a crash which effectively ended Johnson’s championship hopes. Johnson showed off the remains of the tread, which had been pulled into long strands, on Fox television during the rain delay.

"Something made it come apart in this really long 50-foot section," Johnson said. "I don’t know if we clipped something on the track that wore the tread and it unwound, or if something else happened. … Either way, we’re down multiple laps."

A representative of Goodyear, which provides race tires for NASCAR’s national circuits, pointed out that Knaus chose to take only left-side tires during the competition caution at lap 50, which was issued because rain earlier in the day had washed rubber off the track surface.

Goodyear termed it "literally a high-wear situation," which can cause the spiral-wound tread on the tire to become completely unwound like pulling a thread on a sweater.

READ MORE:

READ: Latest
NASCAR news

WATCH: Latest
NASCAR video

PLAY: NASCAR
Fantasy Live

FOLLOW LIVE: Get
RaceView

Virginia Tech, Tennessee will play football at BMS in 2016

RELATED: Play NASCAR Fantasy Live | Sign up for RaceView today

BRISTOL, Tenn. — Frank Beamer is well familiar with the walls around the World’s Most Famous Half-Mile.

The Virginia Tech football coach was trying not to hit them during his appearance in a 2009 charity celebrity race at Bristol Motor Speedway. Beamer made about 15 laps around the track, keeping as low on the high-banked concrete surface as he could.

I was just trying not to hit the wall. That’s all," he remembered. "I was trying to get around that race track and not hit the wall. I saw a policeman friend afterward, and he said, ‘I swear, I’ve seen you go faster on Interstate 81 than you went out there.’ Probably true, too."

Beamer will be back at Bristol in the fall of 2016, but in a much more familiar environment. That’s when Virginia Tech is slated to play Tennessee in a college football game inside the 160,000-seat race track that could set a record for attendance.

Beamer and Volunteers coach Butch Jones were at Bristol on Sunday to give the command to start engines for the Food City 500, the start of which was delayed by rain.

The coaches’ focus, though, was the "Battle of Bristol" set for Sept. 10, 2016, in the race track only a short drive from the Tennessee-Virginia line.

General manager Jerry Caldwell called the game 17 years in the making, and the hope is to break the NCAA attendance mark of 115,109 set last season when Notre Dame visited Michigan.

Beamer called Bristol his second-favorite sports venue behind Lane Stadium, the facility 132 miles away in Blacksburg, Va., where the Hokies play their home games. Tennessee’s home field, Neyland Stadium in Knoxville, is 110 miles away and holds 102,854 — but Jones believes playing in Bristol will be a completely different experience.

"I think it will be a whole different ballgame in terms of the anticipation, anticipating it for a few years," Jones said. "I think knowing that you’re going to break the world record is pretty exciting. I believe in Tennessee fashion, we’ve already sold our ticket allotment so far. That’s another illustration of the excitement and the passion that surround Tennessee football."

Both schools were allotted 40,000 tickets, and seats will be sold to the general public beginning in early 2016.

"It’s going to be a fantastic game, a fantastic setting, a part of history. And this area is one that’s going to benefit from it," Beamer said. "I know people for a long time wanted us to schedule a game with Tennessee or Tennessee to schedule a game with us, and we did it right here in the middle between us. So I think it’s a fantastic situation."

And this time, Beamer will be on the sideline rather then behind the wheel. For the record, Jones has never taken a spin in a race car," the Tennessee coach said. "I would be the same as Coach Beamer illustrated — just don’t bang into the wall."

READ MORE:

READ: Latest
NASCAR news

WATCH: Latest
NASCAR video

PLAY: NASCAR
Fantasy Live

FOLLOW LIVE: Get
RaceView

Race sees two rain delays, multiple accidents, even flames but well worth it for Edwards

RELATED: Full race results | Series standings

BRISTOL, Tenn. — Carl Edwards seemed to be cruising to victory in the final laps of Sunday’s Food City 500 at Bristol Motor Speedway.

But nothing would come easily this day or night for drivers, fans or track officials in a race delayed more than five hours by rain.

Edwards had opened a lead of more than four seconds when the track’s caution lights inexplicably came on with less than three laps remaining. Moments later, a cloudburst released the hardest rain of the day or night.

The race finished under caution and Edwards did prevail, finishing ahead of his Roush Fenway Racing teammate Ricky Stenhouse Jr. and Aric Almirola in a 1-2-3 sweep by Fords.

"I did not want to see that caution," Edwards said. "Concern was not a strong enough word. So, I’m glad the rain came. I think there were some higher powers at work there."

NASCAR Vice President of Competition and Racing Development Robin Pemberton attributed the light malfunction to human error; in this case, humans bundled up against the cold in layers of clothing.

"In the flagstand, it appears one of the flag people had leaned on the switch that is the manual override for the caution lights," Pemberton said. "When the flag stand realized this, the flagman threw the caution flag (six seconds later). After that happened, we froze the field from the tower."

Of course, mishaps were the order of the day and night in a race delayed close to two hours at the outset, then for 3 hours and 19 minutes just 124 laps into the race.

Kevin Harvick, racing fourth with 50 laps remaining, left the track in flames. Matt Kenseth saw his fast car become even faster after his Toyota was rammed from behind and Kyle Busch seemed on his way to continuing his domination at Bristol until tire troubles led to his spin and eventual demise.

Edwards and crew chief Jimmy Fennig made the winning decision on a late-race pit stop, electing to stay on the track and hold off the field for the final 71 laps without the benefit of fresh tires.

"We had only 17 laps on our tires," Fennig said. "The weather, at that time, wasn’t a factor anymore, once the track became rubbered in. We knew the speed (of our car) was there."

"I knew pretty quickly after restarting that not pitting was the right call," Edwards said. "We ran our fastest lap with 30-40 laps on the tires."

Edwards wasn’t sure his team would even be in position to challenge for the victory.

"I can’t believe we turned this around," Edwards said. "We were terrible on Saturday. Jimmy told me (our crew) worked until 3 a.m. on simulation stuff. We’d been struggling lately, so for us to come out here and run so well with the number of Fords out of our shop, that was big.

"(Now) we’re in the Chase and we’re going to go out and win this championship."

Edwards has improved his finish each week this season since opening with a 17th in the Daytona 500. He was eighth at Phoenix and fifth last week at Las Vegas.

As the race wound down, Edwards was most concerned about Harvick, who led 28 laps and would have been restarting behind him on fresh tires.

But Harvick’s car began smoking with 50 laps to go. Harvick lost control, pounded the wall and climbed out of the car that was on fire after driving it to the garage. Jamie McMurray, who led 10 laps, took evasive action, suffered damage and finished 38th. Brad Keselowski, who’d led 40 laps, then ran into the back of McMurray and ended up 14th.

Kenseth led the most laps — 165 — despite being rear-ended by Timmy Hill as the field was checking up for a caution on Lap 157. Even with extensive damage below the rear spoiler, Kenseth was in contention until his car lost handling on Lap 409. He finished 13th.

Busch, who won Saturday’s NASCAR Nationwide Series race for his record-setting 16th national touring series victory at Bristol, led 56 of the first 250 laps but fell out of contention after developing tire problems on Lap 275 and finished 29th.

Almirola’s third-place finish was the best of his NASCAR Sprint Cup Series career, but he had visions of victory for Richard Petty Motorsports.

"I saw it, right there at my fingertips on that one restart when I raced side-by-side with Carl," Almirola said. "When you can see it and taste it and you’re that close, you wonder what could have went differently. But he had a lot better car than we did tonight."    

The series now heads to Auto Club Speedway in Fontana, Calif., for the Auto Club 400 on Sunday at 3 p.m. ET on FOX.

READ MORE:

READ: Latest
NASCAR news

WATCH: Latest
NASCAR video

PLAY: NASCAR
Fantasy Live

FOLLOW LIVE: Get
RaceView

Owner brings Ford first overall win in 45 years at the endurance classic

RELATED: Play NASCAR Fantasy Live

SEBRING, Fla. — As Marino Franchitti walked over to his team owner Chip Ganassi for a congratulatory handshake amid falling confetti, champagne showers and camera flashbulbs, Ganassi leaned in toward his driver and summed up the team’s Mobil 1 12 Hours of Sebring fueled by Fresh from Florida victory Saturday in three understated words.

"That was sweet," Ganassi said, with a handshake and a hug.

It was also historic.

Franchitti’s 4.6-second victory after 12 of the toughest hard-nosed hours of competition in the sport, made Ganassi the only team owner with wins in the Daytona 500, Indianapolis 500, Brickyard 400 and the TUDOR United Sportscar Series’ two crown jewels, the Rolex 24 at Daytona and 12 Hours of Sebring.

Happy to give Ford Racing it’s first Sebring win in 45 years and to score a victory in his very first try at the famed Sebring International Raceway, Ganassi said he hadn’t even realized the big-picture significance of the day.

"When you look at the guys who have won this race, I mean it has some real history about it," said a smiling Ganassi, who fields NASCAR Sprint Cup Series cars for Jamie McMurray and Sunoco Rookie of the Year contender Kyle Larson.

"Records are made to be broken and I’m sure some day someone will break this one, but it’s nice to have right now.

"We had a great crowd, a great finish and I think the most cars ever on the lead lap at the end. That’s a big thing."

It was a big night — for the newly merged sports car series, which punctuated its Sebring debut with a 12-hour race decided in the final 20 minutes with nine cars on the lead lap — triple the previous record for lead-lap cars.

And it was a big night for Ganassi, his drivers and for Ford.

"You read about stuff like this," said Ford Racing director Jamie Allison. "The last time Ford won overall was in 1969 and what really makes it so sweet is that this is a win made possible by a production-based Ford EcoBoost.

"Literally it comes out of our production vehicle. It just makes it so, so sweet because it validates what we do at Ford, that the technology we have in our cars is good enough to power an all-out win here at the Sebring 12 Hour."

Franchitti, who drove the No. 01 Telcel Ford Riley prototype final stint, called it the most important win of his career.

"The Franchitti guys are winning some big races for Chip," he said smiling in reference to his older brother Dario’s two Indy 500 wins with Ganassi (Dario has another with Andretti Autosport).

"I never dreamt we could win this in our first start for Chip. I’m excited for Big Machine all our sponsors. I’m just blown away. It hasn’t sunk in."

His co-driver, veteran Ganassi driver Scott Pruett, on the other hand, was gladly and visibly soaking it all in. It’s been a long time coming.

"I’m just proud to work for the Ganassi organization," said Pruett, who finally hoisted the overall winner’s trophy 25 years after his first Sebring start.

"If you know Chip, his passion is racing," Pruett said. "His determination is racing, and he gets the right people together from drivers to engineers to crew.

"There’s nothing he hasn’t won. It’s been an incredible run. The things we continue to achieve together have been incredible. It’s exciting but not surprising when you look at all the people that have been involved in the Ganassi organization.

"The Good Lord blessed me and I’m enjoying every minute of it."

READ MORE:

READ: Latest
NASCAR news

WATCH: Latest
NASCAR video

PLAY: NASCAR
Fantasy Live

FOLLOW LIVE: Get
RaceView

NASCAR Sprint Cup Series Food City 500 ended with yellow-checkered flag

RELATED: Play NASCAR Fantasy Live | Sign up for RaceView today

A track-light malfunction triggered the final caution. As a result, we threw a full caution as the operation of those lights became compromised.


READ MORE:

READ: Latest
NASCAR news

WATCH: Latest
NASCAR video

PLAY: NASCAR
Fantasy Live

FOLLOW LIVE: Get
RaceView

Moments that changed the course of the fourth race of the season

EDWARDS OUT FRONT FOR YELLOW-CHECKERED FINISH

Carl Edwards seemed to be cruising to victory in the final laps of Sunday’s Food City 500 at Bristol Motor Speedway.

But nothing would come easily this day or night for drivers, fans or track officials in a race delayed more than five hours by rain.

Edwards had opened a lead of more than four seconds when the track’s caution lights inexplicably came on with less than three laps remaining. Seconds later, a cloudburst released the hardest rain of the day or night.

The race finished under caution and Edwards did prevail, finishing ahead of his teammate Ricky Stenhouse Jr. and Aric Almirola in a 1-2-3 sweep by Fords.

"I did not want to see that caution," Edwards said. "Concern was not a strong enough word. So, I’m glad the rain came. I think there were some higher powers at work there."

NASCAR Vice President of Competition and Racing Development Robin Pemberton attributed the light malfunction to human error; in this case, humans bundled up against the cold in layers of clothing.

UPS


HARVICK CATCHES FIRE; MCMURRAY, KESELOWSKI GET CAUGHT UP

Kevin Harvick, racing fourth with 50 laps remaining, left the track in flames as his car began smoking. He lost control, pounded the wall and climbed out of the car that was on fire after driving it to the garage. Jamie McMurray, who led 10 laps, took evasive action, suffered damage and finished 38th. Brad Keselowski, who’d led 40 laps, then ran into the back of McMurray and ended up 14th.

JOHNSON’S TIRE, HOPES FOR A WIN UNWIND

In the blink of an eye, Jimmie Johnson went from leading at Bristol Motor Speedway to multiple laps down due to a tire issue.

The six-time Sprint Cup Series champion led a race-high 44 laps early Sunday, but began slowing while running second to Matt Kenseth and pitted for an apparent flat right-front tire on the half-mile track. A caution for rain came out during the No. 48 team’s subsequent pit cycle, and Johnson was left two laps down in 39th place when the event was halted under a red flag. He finished 19th.

"Something made it come apart in this really long 50-foot section," Johnson said. "I don’t know if we clipped something on the track that wore the tread and it unwound, or if something else happened. … Either way, we’re down multiple laps."

A representative of Goodyear, which provides race tires for NASCAR’s national circuits, pointed out that Knaus chose to take only left-side tires during the competition caution at lap 50, which was issued because rain earlier in the day had washed rubber off the track surface.

Goodyear termed it "literally a high-wear situation," which can cause the spiral-wound tread on the tire to become completely unwound like pulling a thread on a sweater.

The NASCAR Wire Service and NASCAR.com’s David Caraviello contributed to this report.