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Lap-by-Lap: Texas

April 10, 2011, , NASCAR.com

Lap 334 -- CHECKERED FLAG: Matt Kenseth wins the Samsung Mobile 500 by more than eight seconds over Clint Bowyer. Tony Stewart ran out of fuel on the last lap, handing third place to Carl Edwards.

Lap 333 -- WHITE FLAG: Matt Kenseth leads Clint Bowyer by 8.3 seconds.

Lap 331 -- Matt Kenseth is counting down the laps now. Carl Edwards is closing on Tony Stewart for third place.

Lap 329 -- Jeff Burton is the final car on the lead lap, running 12th.

Lap 327 -- Greg Biffle takes fifth, and Jimmie Johnson and Dale Earnhardt Jr. are running ninth and 10th respectively.

Lap 325 -- Clint Bowyer is closing, but he might not have enough time.

Lap 324 -- Greg Biffle is all over Paul Menard for that fifth spot.

Lap 322 -- Kyle Busch is in for his final stop. He took two tires and had a minor adjustment. He said he has the car to make a run at them.

Lap 321 -- And Kurt Busch hits pit road, his hopes dashed by the long green-flag run. Matt Kenseth has the lead, and an 8.1 second cushion on Clint Bowyer.

Lap 320 -- Kurt Busch is still hanging on with one lap to go, hoping for a caution.

Lap 318 -- Marcos Ambrose is now seventh. Dale Earnhardt Jr. is 11th.

Lap 315 -- Paul Menard is up to seventh, and Greg Biffle gets past Kyle Busch for eighth.

Lap 313 -- Carl Edwards is up to fifth. Marcos Ambrose is sixth, Kyle Busch seventh, Paul Menard eighth, Greg Biffle ninth and David Ragan 10th.

Lap 311 -- Matt Kenseth is only 11.5 seconds behind Kurt Busch.

Lap 310 -- Dale Earnhardt Jr. has unlapped himself as well.

Lap 309 -- Clint Bowyer is up to third, and Tony Stewart is fourth after passing Kyle Busch. Denny Hamlin is on pit road for his final stop.

Lap 308 -- David Ragan unlapped himself, while Denny Hamlin and Dale Earnhardt Jr. are now a lap down.

Lap 306 -- With 27 laps remaining, the gamble is on to try to wait out for another caution.

Lap 304 -- Kurt Busch is still out in the lead, but the gap is now less than 16 seconds on Matt Kenseth. Clint Bowyer has gotten past Tony Stewart for fourth.

Lap 301 -- Ryan Newman hits pit road, leaving Kurt Busch with a 17-second lead on Matt Kenseth.

Lap 297 -- As others' green-flag stops have cycled through, the top five are Kurt Busch, Ryan Newman, Matt Kenseth, Kyle Busch and Tony Stewart.

Lap 296 -- Jimmie Johnson gets minor adjustments as Kurt Busch leads. We'll see how long he stays out this time.

Lap 294 -- David Ragan is on pit road, as is former race leader Matt Kenseth. Clint Bowyer holds the lead. A small adjustment and four tires for Carl Edwards. Dale Earnhardt Jr. said his team has gotten very tight, so they undid the last adjustment.

Lap 292 -- Jeff Burton is in the top 10 for the first time under non-green-flag-stop conditions all night.

Lap 290 -- Greg Biffle is coming for David Ragan and his sixth-place spot.

Lap 288 -- Matt Kenseth's lead on Clint Bowyer is nearly 4.5 seconds. Greg Biffle just passed Dale Earnhardt Jr. for seventh.

Lap 285 -- On his team radio, a resigned Tony Stewart said, "Sorry, I knew I did it."

Lap 284 -- Matt Kenseth just made it so there are only 12 on the lead lap. Sorry, Ryan Newman.

Lap 283 -- Ryan Newman is up into 13th, the final car on the lead lap.

Lap 280 -- Matt Kenseth is back to the lead with Clint Bowyer, Carl Edwards, Marcos Ambrose and Paul Menard running in the top five. David Ragan, Dale Earnhardt Jr., Greg Biffle, Jimmie Johnson and Juan Montoya round out the top 10.

Lap 277 -- And Tony Stewart gets flagged for speeding entering pit road, sticking him with a pass-through penalty and costing him his shot at a pit strategy win.

Lap 276 -- Tony Stewart is on pit road 58 laps since his last pit, and leaves him 58 laps left to the end. He could parlay this into another pit strategy victory.

Lap 273 -- There are 10 cars on the lead lap, as Dale Earnhardt Jr., Jimmie Johnson and Greg Biffle have all unlapped themselves by passing Tony Stewart.

Lap 272 -- It was another left rear tire vibration for Kyle Busch, and now he's essentially two laps down..

Lap 271 -- And Kurt Busch has hit pit road. He wanted no adjustments, just four tires and fuel. Tony Stewart is the lone dog out there who hasn't pitted on the lead lap. Kyle Busch came in for another tire vibration.

Lap 270 -- David Ragan just got past Stewart to put himself on the lead lap. Brad Keselowski has come in for his stop, meaning Kurt Busch can't be far behind.

Lap 267 -- Kurt Busch is still out, as is Tony Stewart and a few others. Busch is giving up a ton of speed to those who have stopped for tires.

Lap 261 -- Kurt Busch is losing ground to Matt Kenseth, who has already made his stop.

Lap 258 -- Kurt Busch is stretching it, and has about 10 laps of fuel left. He's hoping for a caution.

Lap 256 -- Kurt Busch leads. Greg Biffle took two rounds on his adjustment as well as four tires. Jeff Burton says his car isn't as balanced as he'd like.

Lap 255 -- Juan Montoya takes four tires on his pit stop.

Lap 254 -- A.J. Allmendinger said his car has been a struggle. He took four tires and a "big swing."

Lap 251 -- Marcos Ambrose takes the lead as Clint Bowyer hits pit road next. Now in comes Ambrose and Kyle Busch. Busch takes four tires, and Ambrose gets four tires as well. Dale Earnhardt Jr. says he's a bit tight. Four tires and an air pressure adjustment for Earnhardt. Tony Stewart leads.

Lap 249 -- Kyle Busch has taken second. Matt Kenseth has headed to pit road. Kenseth took four tires and two cans of fuel.

Lap 248 -- Dale Earnhardt Jr. has taken seventh place from David Ragan.

Lap 247 -- Kyle Busch takes third from Marcos Ambrose.

Lap 245 -- Clint Bowyer's lead on Matt Kenseth is about a second, and Marcos Ambrose is another second and a half back.

Lap 243 -- Greg Biffle has gotten up to 12th.

Lap 241 -- Dale Earnhardt Jr. is trying to take seventh place from David Ragan, opting for the inside line.

Lap 240 -- Denny Hamlin is still hovering, racing 16th right now, but he's a lap down. He holds the free pass spot, however.

Lap 238 -- Greg Biffle is up to 13th.

Lap 237 -- Tony Stewart is up into the top 10, passing Kurt Busch.

Lap 236 -- Paul Menard has moved back to sixth by passing David Ragan. Tony Stewart has passed Juan Montoya for 11th.

Lap 233 -- Matt Kenseth went a bit high and Clint Bowyer has stretched his lead back to more than a second.

Lap 231 -- Matt Kenseth is closing up on Clint Bowyer, running the high line.

Lap 228 -- Juan Montoya is up to 11th and has to get past just Kurt Busch to get into the top 10.

Lap 226 -- Greg Biffle, who has run in the top five consistently, is now 14th.

Lap 224 -- David Ragan actually gets around Paul Menard for sixth, and Kyle Busch holds fifth.

Lap 223 -- Kyle Busch has his hands full with Paul Menard for fifth.

Lap 221 -- Another strong restart for Clint Bowyer, who seems to like the clean air up front. He's pulled away.

Lap 220 -- GREEN FLAG: Clint Bowyer paces the field. Matt Kenseth, Marcos Ambrose, Carl Edwards and Kyle Busch are next in line.

Lap 218 -- After making a strong restart to move into third, Marcos Ambrose will have a chance to take a shot at the lead on this one.

Lap 216 -- Jamie McMurray and A.J. Allmendinger avoided the wreckage.

Lap 214 -- YELLOW FLAG NO. 5: Several cars spin around on the backstretch, bringing out yet another caution. Among those involved were Mark Martin and Martin Truex Jr.

Lap 213 -- They were three wide into Turn 3, but Clint Bowyer held on to take the lead. Matt Kenseth is second and Marcos Ambrose is third.

Lap 212 -- GREEN FLAG: Matt Kenseth leads the field to green. Clint Bowyer, David Ragan, Carl Edwards and Greg Biffle round out the top five.

Lap 211 -- Kevin Harvick is among those in the second group to hit pit road. Tony Stewart makes a long stop to repair damage, as do Joey Logano and David Reutimann.

Lap 210 -- Kyle Busch, Dale Earnhardt Jr., Jimmie Johnson, Paul Menard, Juan Montoya and Kurt Busch hit pit road despite just making green-flag stops. Kyle Busch is talking about a vibration, so they brought him in.

Lap 208 -- YELLOW FLAG NO. 4: Debris on the track has brought out the caution flag. That will bunch up the field and maybe introduce some racing at the front of the field.

Lap 206 -- Jeff Gordon says he's super loose on his stop.

Lap 205 -- Tony Stewart heads to the pits, and Matt Kenseth is back to the lead. His lead is more than 13 seconds on Clint Bowyer.

Lap 204 -- No adjustments for Kyle Busch. Tony Stewart takes the lead as Clint Bowyer has come to pit road. Bowyer takes a small adjustment and Regan Smith has a drive-through penalty for a loose tire on his stop.

Lap 203 -- Greg Biffle gets a small adjustment. Dale Earnhardt Jr. gets four tires and a has the tear-off on his windshield ripped off.

Lap 201 -- Kurt Busch is leading the next pack of cars onto pit road; Busch is getting a big change in handling. Carl Edwards locks up his brakes to keep from hitting Busch. Clint Bowyer is in the lead.

Lap 200 -- Leader Matt Kenseth is on pit road for a full tank of gas, and now David Ragan follows him there.

Lap 199 -- Paul Menard has gotten past Jimmie Johnson for ninth place.

Lap 198 -- Matt Kenseth is basically making a mockery of this race, as his lead is nearly eight seconds on Clint Bowyer.

Lap 197 -- Kurt Busch is running 13th, and Juan Montoya is up to 14th.

Lap 195 -- Kyle Busch has gotten past David Ragan for third place.

Lap 192 -- Jeff Burton is up to 12th.

Lap 190 -- Carl Edwards is up into the top five, getting around his teammate, Greg Biffle.

Lap 187 -- We're closing in on more green-flag pit stops, and Matt Kenseth just heard he didn't get all his fuel. He's eight laps short of a full tank.

Lap 186 -- Tony Stewart is up to 11th, one ahead of A.J. Allmendinger.

Lap 181 -- Jeff Burton has climbed to 13th.

Lap 179 -- Kyle Busch has gotten around Greg Biffle for the fourth position.

Lap 175 -- Juan Montoya is running 16th, closing in on the top 15.

Lap 172 -- Matt Kenseth has checked out, now leading second-place Bowyer by nearly five seconds.

Lap 170 -- Jeff Burton is back up to 14th, four spots behind teammate Paul Menard. Three RCR cars are in the top 14, and Kevin Harvick is 18th.

Lap 169 -- Dale Earnhardt Jr. is up to seventh. Jimmie Johnson left the pits in 11th and is up to ninth.

Lap 168 -- Matt Kenseth holds the lead after green-flag stops cycle through.

Lap 162 -- Green flag pit stops have begun. No adjustments for David Ragan. Matt Kenseth exits as well. Most of the field is on pit road, and Carl Edwards leads.

Lap 161 -- Matt Kenseth is continuing to stretch his lead, now up by more than 2.5 seconds on Clint Bowyer.

Lap 160 -- Dale Earnhardt Jr. has climbed to eighth.

Lap 157 -- Good news: Jeff Gordon has picked up 10 spots since the start. Bad news: he's still 22nd.

Lap 155 -- Jimmie Johnson gets past Marcos Ambrose for seventh, and is closing on Carl Edwards for sixth.

Lap 153 -- Clint Bowyer gets past David Ragan and takes over the second spot. Bowyer is still more than two seconds behind leader Matt Kenseth.

Lap 151 -- Paul Menard gets past Kurt Busch for a spot in the top 10, but Busch isn't giving up that easily.

Lap 149 -- Clint Bowyer is running third, with Greg Biffle a ways back in fourth.

Lap 148 -- Paul Menard is up to 11th, having gotten past Brad Keselowski. Next up is Kes's teammate, Kurt Busch.

Lap 147 -- David Ragan is threatening to cut Matt Kenseth's lead to less than a second.

Lap 146 -- Paul Menard has been very reliable, running back around 12th. He'll see if he has enough to move into the top 10.

Lap 144 -- Jimmie Johnson is up to eighth, and teammate Dale Earnhardt Jr. is one spot back in ninth.

Lap 142 -- Kyle Busch has suddenly lost handling, and he's fallen to fifth.

Lap 140 -- Without getting too graphic, I'll just say Carl Edwards' stomach problems have become a more physical issue.

Lap 138 -- Jamie McMurray makes an unscheduled pit stop. And unsurprisingly, Kurt Busch is unhappy on his team radio. He says he's "tired of working this hard."

Lap 137 -- Matt Kenseth's lead is 1.7 seconds on David Ragan, but Kyle Busch is coming to the front in third.

Lap 136 -- Marcos Ambrose and Kurt Busch are battling for seventh.

Lap 134 -- Brad Keselowski is running 10th.

Lap 133 -- Kurt Busch has fallen to seventh with the two-tire change, which isn't working as well as the track surface has cooled.

Lap 130 -- Dale Earnhardt Jr. is up to 13th; Denny Hamlin has fallen out of the top 10 after being passed by Jimmie Johnson.

Lap 128 -- Kyle Busch gets past his older brother, Kurt, for third.

Lap 126 -- David Ragan gets past Kurt Busch for second place.

Lap 125 -- The two-tire call might not have worked out for Denny Hamlin. He's down to ninth now.

Lap 123 -- Matt Kenseth and his four fresh tires ride the low groove back into the lead. All four Roush Fenway cars are still in the top 10.

Lap 122 -- A poor restart continues to haunt Brad Keselowski, as David Ragan gets past him for third.

Lap 121 -- Those pit stops shuffled things up. Jimmie Johnson is up to 11th, Brian Vickers is 12th, and Tony Stewart is 13th. That's the first time Vickers and Stewart have seen the top 15.

Lap 119 -- Matt Kenseth didn't take long to move to second, getting around Brad Keselowski. Denny Hamlin has fallen to sixth after taking two tires.

Lap 118 -- GREEN FLAG: Kurt Busch leads the field to green, with Brad Keselowski, Matt Kenseth, Denny Hamlin and David Ragan rounding out the top five.

Lap 117 -- Remember that upset stomach of Carl Edwards? My coworker, David Caraviello, reports Edwards has dropped the Tums he was given and was unable to ingest them.

Lap 115 -- He's baaaack. Denny Hamlin is fourth after those pit stops.

Lap 114 -- Guys are up on the wall on pit road, waiting for the influx of cars. And here come the leaders. Matt Kenseth takes four tires, as did Greg Biffle. Biffle added a small adjustment to tighten it up. Clint Bowyer took four tires and aimed for more grip. David Ragan takes four tires and a small chassis adjustment. Kurt Busch and Brad Keselowski win the race off pit road after taking two tires.

Lap 113 -- YELLOW FLAG NO. 3: Ken Schrader brings out the third caution (sorry for jinxing it) after he cut a right front tire.

Lap 111 -- Trevor Bayne is running 16th in his first return to a track in a Cup race.

Lap 110 -- Now at 60 laps, this green-flag run is the longest in the past five years at Texas.

Lap 108 -- Matt Kenseth now leads by nearly four seconds on David Ragan. Clint Bowyer, in third, is 6.6 seconds back.

Lap 106 -- Regan Smith started fifth, but is running 25th now.

Lap 105 -- Matt Kenseth's lead is more than three seconds over David Ragan.

Lap 104 -- Dale Earnhardt Jr. gets past Paul Menard for 12th.

Lap 102 -- Greg Biffle has moved into fourth, getting around A.J. Allmendinger. The Roush Fenway cars are still pacing the field, running first (Matt Kenseth), second (David Ragan), fourth (Greg Biffle) and sixth (Carl Edwards).

Lap 100 -- Dale Earnhardt Jr. is 13th after the pit stop, the top-running Hendrick Motorsports car. Jimmie Johnson is right behind him in 14th.

Lap 99 -- Clint Bowyer has gotten past A.J. Allmendinger for that third position.

Lap 98 -- With all the lead-lap cars having completed their pit stops, A.J. Allmendinger is up to third.

Lap 97 -- Carl Edwards gets some water as he's been complaining of an upset stomach. Jimmie Johnson has finished his pit stop. Dale Earnhardt Jr. is now on pit road and Matt Kenseth is back to the lead.

Lap 96 -- Four tires for Kyle Busch, as well as Clint Bowyer. Dale Earnhardt Jr. holds the lead.

Lap 95 -- Matt Kenseth is on pit road along with Greg Biffle. Carl Edwards now leads.

Lap 94 -- David Ragan is on pit road to take four tires and no chassis adjustments.

Lap 93 -- Green flag pit stops have started, with Robby Gordon among those on pit road.

Lap 92 -- Dale Earnhardt Jr. is up to ninth. Denny Hamlin is 11th.

Lap 91 -- Matt Kenseth is concerned about his engine, with it running hot and now he's saying the oil pressure is fluctuating.

Lap 90 -- Brad Keselowski has gotten past Kyle Busch for ninth.

Lap 88 -- Jimmie Johnson is 15th and has about one second to go to catch Paul Menard in 14th.

Lap 87 -- Matt Kenseth is coming up on traffic, which is allowing David Ragan to close the deficit.

Lap 86 -- Denny Hamlin is still climbing, moving up to 13th. Next on his list is Jamie McMurray in 12th.

Lap 83 -- Kurt Busch has lost two spots, as both Marcos Ambrose and Carl Edwards have gotten past him. Busch is now running seventh.

Lap 82 -- Dale Earnhardt Jr. is up to 11th and is just behind Brad Keselowski for a spot in the top 10.

Lap 80 -- And now Marcos Ambrose is battling Kurt Busch for fifth.

Lap 78 -- Marcos Ambrose is up to sixth.

Lap 77 -- David Reutimann goes hard into the wall, suffering more damage. Denny Hamlin has taken 14th.

Lap 76 -- David Ragan is in second, but is still 2.4 seconds behind Matt Kenseth.

Lap 75 -- Denny Hamlin is closing on Jeff Burton for that 14th spot.

Lap 74 -- Teammates Marcos Ambrose and A.J. Allmendinger are running seventh and eighth, respectively.

Lap 72 -- Jamie McMurray is running 11th, and Jeff Burton is back up to 14th.

Lap 69 -- Paul Menard has regained 12th from Dale Earnhardt Jr.

Lap 67 -- Denny Hamlin and Jimmie Johnson are running together, Hamlin in 16th and Johnson in 17th.

Lap 65 -- Matt Kenseth's lead is more than one second over Greg Biffle.

Lap 63 -- Dale Earnhardt Jr. has taken over 12th from Paul Menard.

Lap 62 -- Kurt Busch, who was running second before the stop, is fifth and one spot ahead of Carl Edwards.

Lap 60 -- Clint Bowyer is running quite comfortably in fourth. Dale Earnhardt Jr. got past Ryan Newman for 13th and is now closing on Paul Menard for 12th.

Lap 59 -- Greg Biffle is complaining about his car getting a little bit loose.

Lap 58 -- Matt Kenseth has taken the lead, passing Greg Biffle.

Lap 57 -- Matt Kenseth is closing on Greg Biffle, and pole-sitter and teammate David Ragan is sitting third.

Lap 55 -- Greg Biffle's lead is nearly a half-second over Matt Kenseth. Dale Earnhardt Jr. is up to 14th.

Lap 53 -- Former leader Brad Keselowski is now seventh, one spot ahead of Kyle Busch.

Lap 51 -- Greg Biffle got a great jump on the restart and has taken the lead.

Lap 50 -- GREEN FLAG: Matt Kenseth leads the field to green with his teammate Greg Biffle on the inside.

Lap 49 -- Joey Logano's team was penalized for having too many men over the wall working on his fender, and he'll start at the tail end of the lead lap.

Lap 48 -- Pit road has wreaked more havoc, as David Reutimann's car has some visible damage, as does Joey Logano's. Dave Blaney is now the leader.

Lap 47 -- Robby Gordon leads after staying out of the pits. Brad Keselowski says he's "driving his butt off." David Ragan asked his team to make it tighter and he took four tires. Matt Kenseth won the race off pit road.

Lap 45 -- YELLOW FLAG NO. 2: David Gilliland has a right front tire go down, putting him in the wall and bringing out the caution. Pit road is about to get real exciting. Brad Keselowski had just regained the lead and this will put him on the same pit cycle as the rest of the field.

Lap 44 -- Matt Kenseth takes the lead from Brad Keselowski.

Lap 43 -- Since I know you're wondering, Dale Earnhardt Jr. is running 18th after starting 28th, one spot behind teammate Mark Martin.

Lap 41 -- Both Jeff Burton and his teammate, Paul Menard, have gotten past Kyle Busch, dropping Shrub down to 13th.

Lap 40 -- And now Kyle Busch and Jeff Burton are battling for that 11th spot.

Lap 39 -- Jamie McMurray has gotten past Kyle Busch for the 10th-place spot.

Lap 37 -- This is only the second race of the season (Daytona) in which Brad Keselowski has led laps. He's continuing to pace the field at Texas.

Lap 35 -- Jimmie Johnson took four tires on the stop, pinning him back in 27th. He was loose, but is improving and has climbed up to 20th after starting sixth.

Lap 34 -- Matt Kenseth is continuing to tail Brad Keselowski, with Kenseth hugging the low line and Keselowski going high in the turns.

Lap 33 -- Martin Truex Jr. is the big mover, up to 16th after starting 31st.

Lap 32 -- Paul Menard has climbed six spots to 13th.

Lap 30 -- Matt Kenseth takes second from Kurt Busch.

Lap 29 -- Brad Keselowski is using the high lane to help him push back to the lead coming out of the turns.

Lap 27 -- It's a three-car race right now with Brad Keselowski, Kurt Busch and Matt Kenseth running nose to tail.

Lap 26 -- Never mind, Matt Kenseth had to go and mess with that little tidbit by getting past Kurt Busch for second. Busch has regained the position going to the line.

Lap 23 -- The Roush Fenway drivers are running third through sixth, with Matt Kenseth, David Ragan, Greg Biffle and Carl Edwards stacked up.

Lap 22 -- Matt Kenseth has gotten past David Ragan for third place behind the Penske Racing teammates.

Lap 21 -- Perhaps I spoke too soon. Kurt Busch is on old tires as well, but he is closing fast on Brad Keselowski.

Lap 19 -- Those old tires don't look so bad for Brad Keselowski, who leads teammates Kurt Busch by nearly a half-second. Busch and pole-sitter David Ragan are battling for second..

Lap 17 -- Jamie McMurray is knocking on the door of the top 10 after starting 17th.

Lap 16 -- Don't look now, but Denny Hamlin is up to 12th after starting 23rd at one of his strongest tracks.

Lap 15 -- Brad Keselowski made a strong move on the inside and got past Kurt Busch for the lead.

Lap 14 -- GREEN FLAG: Kurt Busch and Penske Racing teammate Brad Keselowski lead the field back to green.

Lap 13 -- Tony Stewart is back on pit road, getting that damage taken care of as best he can.

Lap 12 -- Kevin Harvick was flagged for a right-side tire violation during his stop, and Tony Stewart had a collision on pit road and did some damage to his right front fender. Stewart is back on pit road, getting that damage taken care of as best he can.

Lap 11 -- The leaders come in, and Kurt Busch stays out to take the lead. Matt Kenseth took two tires. Carl Edwards took two tires as well with a slight adjustment for it being free on exit. David Ragan took right-side tires only and had a slight adjustment for freeness as well.

Lap 10 -- YELLOW FLAG NO. 1: Tony Raines goes up in smoke, bringing out the first caution of the day.

Lap 9 -- Kurt Busch is up to seventh, and Denny Hamlin has picked up four spots but is still back in 19th.

Lap 8 -- Marcos Ambrose has climbed into the top five.

Lap 7 -- David Ragan has opened up a lead of nearly one second on his teammate, Matt Kenseth, who took over second from Carl Edwards.

Lap 6 -- A.J. Allmendinger is up to ninth after starting 15th.

Lap 5 -- Matt Kenseth is making a move on the inside, trying to take second from Carl Edwards.

Lap 4 -- David Ragan still leads, but his teammates Carl Edwards and Matt Kenseth are up to second and third, respectively.

Lap 2 -- Jimmie Johnson is having problems and has dropped from sixth to 14th.

Lap 1 -- David Ragan keeps the lead, and Carl Edwards has fallen back to third. Clint Bowyer is second.

7:47 p.m. ET -- GREEN FLAG: David Ragan leads the field to green for the Samsung Mobile 500. Carl Edwards is on the outside, with Clint Bowyer and Matt Kenseth in the second row.

7:38 p.m. ET -- Retired Army Chief Warrant Officer 5 Gary Linfoot gives the most famous words in motorsports: "Gentlemen, start your engines!"

7:31 p.m. ET -- The Army Ground Forces Band -- "Brass Brigade" -- performs the national anthem.

7:30 p.m. ET -- Dr. Roger Marsh from TXARM (Texas Alliance Raceway Ministries) gives the Invocation.

7 p.m. ET -- FOX's pre-race coverage is under way.

6:23 p.m. ET -- It is a balmy one, boys and girls. It's 90 degrees at Texas Motor Speedway, setting the track up for plenty of changes as it cools down during the Samsung Mobile 500. David Ragan starts on the pole with Roush Fenway teammate Carl Edwards next to him. Green is scheduled for 7:46 p.m. ET.