Lap-by-Lap: Chicago

CHECKERED FLAG: Mark Martin holds off Jeff Gordon to win the LifeLock.com 400. Kasey Kahne comes home third.

Lap 266 -- WHITE FLAG: Mark Martin gets a great start and runs away from the field. Kasey Kahne passes Jeff Gordon for second.

Lap 265 -- GREEN FLAG: Mark Martin brings the field to the green on the outside.
1. Mark Martin
2. Jeff Gordon
3. Denny Hamlin
4. Kasey Kahne
5. Ryan Newman

Lap 263 -- Carl Edwards, Kevin Harvick, Kurt Busch, Dale Earnhardt Jr. and Martin Truex Jr. among the lead-lap cars to pit.

Lap 260 -- YELLOW FLAG NO. 7: After a tough race, Kyle Busch's No. 18 finally has his engine expire spilling oil all over Turn 3. Joey Logano gets the free pass.

Lap 258 -- Tony Stewart and Ryan Newman pass Jimmie Johnson for fifth and sixth.

Lap 257 -- Jeff Gordon passes Denny Hamlin for second.

Lap 256 -- Jimmie Johnson down to fifth. Brian Vickers down to seventh. Kurt Busch down to 11th.

Lap 255 -- Jeff Gordon passes Kasey Kahne for third. Brad Keselowski on pit road.

Lap 253 -- Brad Keselowski up in the wall and falls to the rear of the field.

Lap 252 -- LEAD CHANGE: Denny Hamlin and Brian Vickers get together slowing each other down and giving Mark Martin the lead. Jimmie Johnson, Kurt Busch and Jeff Gordon have three-wide contact.

Lap 251 -- LEAD CHANGE: Denny Hamlin pushes Jimmie Johnson on the restart dropping him to fourth. Denny Hamlin and Brian Vickers were side-by-side with Vickers leading.

Lap 250 -- GREEN FLAG: Jimmie Johnson brings the field to the green on the outside.
1. Jimmie Johnson
2. Brian Vickers
3. Mark Martin
4. Denny Hamlin
5. Kasey Kahne

Lap 248 -- The top-eight stayed out, from ninth back hit pit road.

Lap 247 -- Jeff Gordon, Dale Earnhardt Jr., Martin Truex Jr., Ryan Newman, Brad Keselowski, Juan Montoya, Tony Stewart and Kevin Harvick the lead-lap cars to pit.

Lap 246 -- YELLOW FLAG NO. 6: David Reutimann hits the wall in Turn 1 after contact with Juan Montoya bringing out the caution. Marcos Ambrose gets the free pass.

Lap 244 -- Jimmie Johnson leads by 1.2 seconds.

Lap 242 -- Mark Martin has caught the bumper of second-place Brian Vickers.

Lap 239 -- Tony Stewart passes Dale Earnhardt Jr. for 16th.

Lap 234 -- Kasey Kahne passes Clint Bowyer for fifth. Thanks to an earlier wave-around, Brad Keselowski finds himself 10th.

Lap 233 -- Brian Vickers has a great start and passes Mark Martin for second. Jimmie Johnson drives away with the lead.

Lap 232 -- GREEN FLAG: Jimmie Johnson brings the field to the green on the outside line.
1. Jimmie Johnson
2. Mark Martin
3. Denny Hamlin
4. Brian Vickers
5. Clint Bowyer

Lap 229 -- Tony Stewart back on pit road for a second consecutive lap.

Lap 228 -- Dale Earnhardt Jr., Tony Stewart and Juan Montoya the lead-lap cars to pit.

Lap 226 -- YELLOW FLAG NO. 5: Paul Menard blows a tire after contact with Dale Earnhardt Jr. and spins in front of the field collecting Scott Speed, Jamie McMurray and Jeff Burton. A.J. Allmendinger gets the free pass.

Lap 225 -- Clint Bowyer passes Kasey Kahne for fifth.

Lap 224 -- LEAD CHANGE: Jimmie Johnson has a great start and passes Mark Martin for the lead.

Lap 223 -- GREEN FLAG: Mark Martin brings the field to the green on the inside.
1. Mark Martin
2. Jimmie Johnson
3. Denny Hamlin
4. Brian Vickers
5. Kasey Kahne

Lap 220 -- Juan Montoya, Kevin Harvick, Tony Stewart and Ryan Newman among the lead-lap cars to pit.

Lap 218 -- YELLOW FLAG NO. 4: Sam Hornish Jr. spins after contact with Joey Logano and hits the inside wall. Martin Truex Jr. gets the free pass.

Lap 217 -- Kasey Kahne struggles on the start and falls to fifth.

Lap 216 -- Tony Stewart restarts 15th after his pit issues.

Lap 215 -- GREEN FLAG: Mark Martin brings the field to the green.
1. Mark Martin
2. Jimmie Johnson
3. Kasey Kahne
4. Denny Hamlin
5. Clint Bowyer

Lap 214 -- Marcos Ambrose, Jamie McMurray, Scott Speed, Reed Sorenson, Bobby Labonte, Jeff Burton, Brad Keselowski, Michael Waltrip and John Andretti take the wave-around.

Lap 213 -- Tony Stewart has to come back to pit road with a loose lug nut.

Lap 212 -- All the leaders hit pit road
• Clint Bowyer with four tires and a track bar adjustment
• Mark Martin with a wedge adjustment and wins race off pit road
• Jimmie Johnson with four tires and an adjustment

Lap 211 -- YELLOW FLAG NO. 3: Debris in Turn 3 brings out the caution. David Reutimann gets the free pass.

Lap 209 -- Mark Martin leads by 3.1 seconds and is closing on Juan Montoya in 15th to put him a lap down.

Lap 208 -- Robby Gordon is out of the garage and back on the track.

Lap 203 -- David Reutimann goes a lap down.

Lap 197 -- After pit stops just 16 cars are on the lead lap. David Reutimann is the last car on the lead lap and Martin Truex Jr. is the first car one lap down.

Lap 195 -- Kyle Busch has lost a cylinder in his engine.

Lap 194 -- Robby Gordon takes his car to the garage.

Lap 193 -- The top five after green flag stops:
1. Mark Martin
2. Jimmie Johnson
3. Denny Hamlin
4. Kasey Kahne
5. Tony Stewart

Lap 189 -- LEAD CHANGE: Mark Martin back out front as green flag stops cycle through.

Lap 188 -- Kurt Busch, Paul Menard and Kasey Kahne on pit road. Kahne with a chassis and air pressure adjustment.

Lap 187 -- LEAD CHANGE: Kasey Kahne takes the lead when Mark Martin pits. Kevin Harvick, Jimmie Johnson, Tony Stewart and Jeff Gordon also pit. Stewart hits A.J. Allmendinger as he exits his pit stall.

Lap 185 -- Denny Hamlin gives up sixth to pit. Hamlin with four tires and a track bar adjustment. Martin Truex Jr. also pits.

Lap 181 -- Tony Stewart passes Kasey Kahne for third.

Lap 178 -- Mark Martin leads by 2.9 seconds and is done lapping cars for a while. David Reutimann in 18th is the last car on the lead lap as green flag stops approach.

Lap 173 -- Bobby Labonte on pit road beginning green flag stops.

Lap 171 -- Sam Hornish Jr. goes a lap down.

Lap 168 -- Brian Vickers down to seventh.

Lap 164 -- Paul Menard passes Ryan Newman for ninth. Kyle Busch may get black-flagged for a tire issue.

Lap 159 -- Kurt Busch back in eighth after passing Ryan Newman.

Lap 156 -- Kudos to Paul Menard who is running 10th after starting 27th.

Lap 154 -- Ryan Newman passes Kurt Busch for eighth.

Lap 151 -- Jeff Burton pits as the final wave-around car.

Lap 150 -- Reed Sorenson is the second wave-around car to pit.

Lap 149 -- Greg Biffle is on pit road, the first wave-around car to pit.

Lap 148 -- Mark Martin leads Jimmie Johnson by 1.2 seconds.

Lap 142 -- Kasey Kahne back up to third after passing Tony Stewart.

Lap 140 -- Jeff Gordon falls to 15th, Carl Edwards down to 16th.

Lap 138 -- Carl Edwards and Jeff Gordon get together getting both cars loose.

Lap 137 -- Tony Stewart has a great start and takes third.

Lap 136 -- GREEN FLAG: Mark Martin brings the field to the green on the inside.
1. Mark Martin
2. Jimmie Johnson
3. Kasey Kahne
4. Tony Stewart
5. Brian Vickers

Lap 134 -- Reed Sorenson, Jeff Burton and Greg Biffle will take the wave-around.

Lap 132 -- All the leaders hit pit road.
• Clint Bowyer wants them to undo the last changes with a track bar adjustment
• Mark Martin with no changes and four tires
• Kasey Kahne with an air pressure adjustment
• Jimmie Johnson with a track bar and air pressure adjustment

Lap 131 -- YELLOW FLAG NO. 2: Debris on the track brings out the caution. Juan Montoya gets the free pass.

Lap 127 -- Brad Keselowski goes a lap down leaving just 19 cars on the lead lap.

Lap 122 -- Mark Martin has a 4.2 second lead on Kasey Kahne.

Lap 119 -- Tony Stewart up to seventh. Dale Earnhardt Jr. works his way to ninth.

Lap 118 -- Joey Logano and Marcos Ambrose go a lap down.

Lap 114 -- Juan Montoya has worked his way up to 18th. Kevin Harvick has also rebounded and is running 15th.

Lap 111 -- Carl Edwards passes Clint Bowyer for fifth.

Lap 110 -- Jamie McMurray goes a lap down.

Lap 106 -- Kasey Kahne passes Jimmie Johnson for second.

Lap 105 -- Jeff Burton is two laps down in 38th. Matt Kenseth a lap down in 25th.

Lap 101 -- The top five after green flag stops:
1. Mark Martin
2. Jimmie Johnson
3. Kasey Kahne
4. Brian Vickers
5. Clint Bowyer

Lap 97 -- LEAD CHANGE: Mark Martin back in the lead as green-flag stops cycle through. Greg Biffle and Reed Sorenson get pit-road penalties and will have to serve pass through penalties.

Lap 96 -- LEAD CHANGE: Tony Stewart pits but is able to lead a lap.

Lap 95 -- Mark Martin, Kasey Kahne, Brian Vickers and Jimmie Johnson all pit. Jeff Burton has problems on pit road and has a long stop.

Lap 94 -- Clint Bowyer, Carl Edwards, Jeff Gordon, Greg Biffle on pit road.

Lap 93 -- Kyle Busch, Bobby Labonte, Ryan Newman and David Stremme begin green flag stops.

Lap 92 -- Bill Elliott and Brad Keselowski go a lap down.

Lap 90 -- Kyle Busch goes a lap down and desperately needs a caution.

Lap 89 -- Carl Edwards passes Denny Hamlin for seventh.

Lap 87 -- Robby Gordon and David Ragan go a lap down. Twenty-nine cars are on the lead lap with five in the garage.

Lap 86 -- Jimmie Johnson is stuck in lap traffic allowing Mark Martin to pull ahead by more than four seconds.

Lap 84 -- Scott Speed goes from starting second to a lap down.

Lap 80 -- Jeff Gordon, Denny Hamlin and Carl Edwards running nose-to-tail in sixth, seventh and eighth.

Lap 78 -- Mark Martin leads by 2.2 seconds as he puts Michael Waltrip a lap down.

Lap 75 -- Kyle Busch has dropped all the way to 20th.

Lap 74 -- Elliott Sadler goes a lap down.

Lap 73 -- Mark Martin puts David Stremme a lap down.

Lap 69 -- Kasey Kahne passes Clint Bowyer for fourth.

Lap 66 -- Juan Montoya struggling right now as he runs 27th.

Lap 64 -- Mike Skinner takes his car to the garage.

Lap 63 -- Kyle Busch gets loose and slams the wall but is able to save it. He has fallen to 15th but Busch is very upset on the radio.

Lap 62 -- Mike Bliss has taken his car to the garage..

Lap 60 -- Carl Edwards up to eighth. Tony Stewart has moved to ninth. Kasey Kahne passes Jeff Gordon for fifth.

Lap 55 -- Kyle Busch is complaining of a very loose race car and fears he is going to crash. Tony Stewart passes Busch for 10th.

Lap 54 -- Kasey Kahne continues to climb as he passes Denny Hamlin for sixth. Carl Edwards up to ninth.

Lap 51 -- Kasey Kahne up to seventh after passing Kyle Busch.

Lap 48 -- Jimmie Johnson wins the battle and is in third.

Lap 46 -- Scott Speed falls all the way to 19th from sixth. Jimmie Johnson, Clint Bowyer and Jeff Gordon are racing for third.

Lap 45 -- Scott Speed gets stuck on the outside and drops quickly.

Lap 44 -- GREEN FLAG: Mark Martin brings the field to the green on the inside line.
1. Mark Martin
2. Brian Vickers
3. Clint Bowyer
4. Denny Hamlin
5. Kyle Busch

Lap 43 -- Bill Elliott had a tire get away from the team and will start at the tail end of the line. Greg Biffle was too fast exiting and will start at the rear as well.

Lap 42 -- LEAD CHANGE: Elliott Sadler pits giving the lead to Mark Martin, who won the race off pit road.

Lap 41 -- LEAD CHANGE: Elliott Sadler stays out to lead a lap and collect five bonus points.

Lap 40 -- All the cars hit pit road.
• Clint Bowyer with four tires and no adjustments
• Mark Martin loves his car and takes four tires
• Jimmie Johnson with four tires
• Brian Vickers with a track bar and spring rubber adjustment

Lap 39 -- YELLOW FLAG NO. 1: Debris in Turn 4 brings out the caution. Casey Mears gets the free pass.

Lap 38 -- Brian Vickers falls to fourth after Mark Martin gets around him.

Lap 37 -- Dale Earnhardt Jr. up to seventh after passing Jeff Gordon.

Lap 35 -- Carl Edwards is up 17th after starting 25th. Clint Bowyer passes Brian Vickers for second.

Lap 34 -- Kyle Busch passes Bill Elliott for ninth.

Lap 32 -- John Andretti goes a lap down. Joe Nemechek takes his car to the garage.

Lap 30 -- Mike Skinner and Joe Nemechek go a lap down.

Lap 29 -- Mark Martin passes Scott Speed for fourth.

Lap 27 -- Tony Stewart up to 16th after passing teammate Ryan Newman.

Lap 25 -- Dale Earnhardt Jr. passes Kasey Kahne for 10th. Jimmie Johnson is closing in on the tail-end of the field.

Lap 21 -- Denny Hamlin is reporting his water gauge says 300 degrees. The crew isn't concerned as the car has had a gauge problem all weekend.

Lap 19 -- Mark Martin continues to climb as he passes Bill Elliott for seventh.

Lap 17 -- Jimmie Johnson leads by 2.5 seconds. Mark Martin passes Kyle Busch for eighth.

Lap 14 -- Tony Stewart up to 21st after starting 32nd.

Lap 12 -- David Gilliland takes his No. 71 to the garage.

Lap 11 -- Dave Blaney becomes the first start-and-park to head to the garage.

Lap 10 -- LEAD CHANGE: Jimmie Johnson passes Brian Vickers to lead for the first time today.

Lap 9 -- Brian Vickers and Jimmie Johnson lead by 2.6 seconds.

Lap 7 -- Bill Elliott up to eighth. Jimmie Johnson on the bumper of leader Brian Vickers.

Lap 4 -- Kyle Busch passes David Reutimann for seventh. Brian Vickers and Jimmie Johnson out in front of the field by 1.5 seconds.

Lap 2 -- Denny Hamlin falls to sixth. Scott Speed down to fourth.

Lap 1 -- Brian Vickers gets a great start and leads the first lap. Jimmie Johnson and Scott Speed are side-by-side for second.

8:17 p.m. -- GREEN FLAG: Red Bull teammates Brian Vickers and Scott Speed bring the field to the green for 267 laps at Chicagoland Speedway.

8:10 p.m. -- The drivers are rolling off pit road and will take three pace laps.

8:08 p.m. -- Grand marshal and Late Night with Jimmy Fallon host, Jimmy Fallon gives a boisterous command: "Gentlemen, start your engines!"

8:01 p.m. -- Country star Jessie James performs the national anthem.

8:00 p.m. -- Clint Spoolstra of Raceway Ministries delivers the Invocation.

7:30 p.m. -- TNT's Countdown to Green has started.

6:30 p.m. -- TNT's pre-race show is under way.

6:25 p.m. ET -- Perfect night for racing in Joliet, Ill., for the LifeLock.com 400. It's currently 82 degrees under sunny skies. Temperatures will get in the low-70s after the sun goes down with no threat of rain. Green for the LifeLock.com 400 is scheduled for 8:19 p.m. ET.