Lap-by-Lap: Fontana

Lap 250 -- CHECKERED FLAG: Jimmie Johnson holds off Kevin Harvick to win the Auto Club 500 at Fontana. Jeff Burton finished third, Mark Martin fourth.

Lap 249 -- WHITE FLAG: Jimmie Johnson continues to hold off Kevin Harvick.

Lap 248 -- Jeff Burton catches Kevin Harvick as teammates try to catch leader Jimmie Johnson.

Lap 247 -- Kevin Harvick has caught Jimmie Johnson and is trying to get around the leader.

Lap 246 -- Kevin Harvick begins to pull away from Jeff Burton and is making his move on leader Jimmie Johnson.

Lap 244 -- Jimmie Johnson matches Kevin Harvick and Jeff Burton in last lap's speed, maintains the lead with six laps to go.

Lap 241 -- Kevin Harvick and Jeff Burton close in on leader Jimmie Johnson.

Lap 239 -- Kurt Busch drops back to sixth as Joey Logano holds him off for fifth position.

Lap 238 -- Joey Logano moves up to fifth, teammates Kevin Harvick and Jeff Burton battle for second.

Lap 237 -- Jeff Burton is back up to third as Jimmie Johnson increases his lead by one second over Kevin Harvick.

Lap 236 -- Scott Speed reports the car is getting faster, moves up to ninth.

Lap 234 -- Jamie McMurray drops back to 13th. Clint Bowyer moves to 12th. Scott Speed and Brian Vickers battle for ninth.

Lap 233 -- Jimmie Johnson runs one of the fastest laps of the race, increasing his lead over Kevin Harvick and the rest of the field.

Lap 230 -- Jimmie Johnson has a strong lap and continues to lead the field, just behind Kevin Harvick. Denny Hamlin pitted after the wave around, earning a black flag.

Lap 229 -- GREEN FLAG: Jimmie Johnson leads the field to green from the inside.
1. Jimmie Johnson
2. Kevin Harvick
3. Jeff Burton
4. Mark Martin
5. Kurt Busch

Lap 227 -- Jimmie Johnson leads the field off of pit road, ahead of Jeff Burton and Kevin Harvick.

Lap 226 -- Drivers head to pit road. Kevin Harvick asks for more grip, Jamie McMurray pits, gets four tires. Most drivers should be able to make it to the end of the race. Harvick struggles again to get off of pit road, spinning his tires.

Lap 225 -- Kasey Kahne is back on the track, 29 laps down.

Lap 224 -- Jamie McMurray has moved back up to fifth position as the wind begins to pick up at Auto Club Speedway.

Lap 223 -- YELLOW FLAG NO. 6: Brad Keselowski is into the wall in Turn 4. He was running 13th at the time wrecked.

Lap 221 -- Jeff Gordon is on pit road after more engine trouble. Sam Hornish makes a scheduled stop.

Lap 220 -- More rain appears to be moving into the area, but for now, cars will race under green.

Lap 218 -- Jeff Burton now leads Kevin Harvick by more than two seconds.

Lap 216 -- Jeff Burton continues to run strong in the lead position, followed by Mark Martin in second, Kevin Harvick in third and Jimmie Johnson in fourth.

Lap 213 -- Jeff Burton opens up a one second lead over Mark Martin. Jimmie Johnson moves up to fourth.

Lap 212 -- Kevin Harvick has moved up to third behind Mark Martin in second.

Lap 210 -- Clint Bowyer heads to pit road as the car begins to overheat.

Lap 209 -- Mark Martin passes Clint Bowyer for second. Jeff Burton continues to lead the field. Jamie McMurray has fought his way back to ninth.

Lap 207 -- The sun is back out on the track, despite ominous clouds just west of Auto Club Speedway.

Lap 206 -- Scott Speed has dropped back to 16th after his pit stop.

Lap 205 -- Jimmie Johnson almost loses it in Turn 4 but is able to save it running close to Kevin Harvick.

Lap 203 -- Clint Bowyer passes Kyle Busch for second. Jeff Burton continues to lead.

Lap 202 -- Kevin Harvick passes Jimmie Johnson for fifth.

Lap 201 -- Jeff Burton and Kyle Busch break away from the field. Denny Hamlin heads to pit road with a flat tire as the field continues to race under green.

Lap 199 -- GREEN FLAG: Jeff Burton brings the field to the green as several drivers take the wave around.
1. Jeff Burton
2. Kyle Busch
3. Jeff Gordon
4. Clint Bowyer
5. Kevin Harvick

Lap 198 -- Scott Speed is headed to pit road, almost out of fuel.

Lap 197 -- Scott Speed reports he is losing fuel pressure and tries to drive on the flat part of the track to conserve fuel and bring the pressure back up.

Lap 196 -- Leader Scott Speed is now worried about running out of gas.

Lap 195 -- Drivers are being asked to stagger their positions to keep the track clean.

Lap 194 -- Drivers take it easy around the track as rain continues to fall.

Lap 193 -- Radar is showing light rain over the track, but more rain is moving its way in. Denny Hamlin has come to pit road in need of fuel. Scott Speed becomes the new leader.

Lap 192 -- YELLOW FLAG NO. 5: Rain has moved its way into Fontana and onto the track. Brad Keselowski will get the free pass.

Lap 190 -- Denny Hamlin leads the field, followed by Scott Speed and Ragan Smith.

Lap 188 -- Brian Vickers leads the field and surrenders the lead to Denny Hamlin after heading to pit road for fuel and tires.

Lap 186 -- Rain is moving into the area at Auto Club Speedway as drivers debate when to pit in anticipation of a weather delay.

Lap 185 -- Kevin Harvick gets four new tires and an air pressure adjustment. Tony Stewart gets a full tank of fuel and reports the car is getting better as the race progresses.

Lap 184 -- Sam Hornish is back on pit road, serving a penalty for entering too fast.

Lap 182 -- Dale Earnhardt Jr. reports a possible broken axle on pit road.

Lap 181 -- Jimmie Johnson tried to make it to lap 183 before heading to pit road but couldn't after his car became too tight. Johnson gets tires and an air pressure change.

Lap 180 -- Sam Hornish heads to pit road, gets four new tires and fuel.

Lap 179 -- Jeff Burton has opened up a 2.5 second lead over Kyle Busch.

Lap 178 -- Jeff Gordon now reports the engine is running fine, called an audible in the pits and is getting four new tires.

Lap 177 -- Denny Hamlin started the race in 43rd position and is now running in 12th.

Lap 176 -- Tony Stewart is running in sixth position and continues to advance.

Lap 173 -- Jeff Gordon reports an engine problem and asks the pit crew to raise the hood when he makes his pit stop.

Lap 172 -- Jeff Burton continues to lead the field, followed by Kyle Busch and Jeff Gordon.

Lap 170 -- Sam Hornish has dropped back to 11th place and Dale Earnhardt Jr. has moved down to 23rd.

Lap 168 -- Tony Stewart has moved up to the seventh position and is chasing down Clint Bowyer in sixth.

Lap 166 -- Jamie McMurray saves his loose car coming out of Turn 4.

Lap 165 -- Jeff Burton is trying to make a move on Kyle Busch, and takes the lead on the low side.

Lap 162 -- Kyle Busch and Jeff Burton separate themselves from Jeff Gordon, currently in third.

Lap 159 -- Jimmie Johnson races back to third position, closing on Jeff Burton in second.

Lap 158 -- Joey Logano moves up to 12th, reports a loose but fast car over the radio.

Lap 157 -- Greg Biffle passes Sam Hornish for ninth.

Lap 155 -- Kyle Busch passes Jeff Burton for the lead and becomes the 12th leader of the race.

Lap 154 -- Jeff Burton picks up the second position racing side-by-side with Jeff Gordon for the lead.

Lap 153 -- GREEN FLAG: Jeff Gordon brings the field to the green.
1. Jeff Gordon
2. Sam Hornish
3. Kyle Busch
4. Jeff Burton
5. Kurt Busch

Lap 150 -- Jimmie Johnson is in sixth position after leading the most laps at this point in the race. Bobby Labonte will get the free pass.

Lap 149 -- Jeff Gordon continues to lead the field under caution, followed by Sam Hornish, Kyle Busch and Jeff Burton.

Lap 147 -- YELLOW FLAG NO. 4: Ryan Newman blows an engine on the high side and is headed to the garage.

Lap 146 -- Jeff Gordon has a strong lap and continue to lead the field, followed by Sam Hornish, Kyle and Kurt Busch.

Lap 145 -- GREEN FLAG: Jeff Gordon brings the field to the green on the inside.
1. Jeff Gordon
2. Ryan Newman
3. Sam Hornish
4. Denny Hamlin
5. Kyle Busch

Lap 143 -- Jeff Gordon leads the field under caution, followed by Ryan Newman and Kurt Busch.

Lap 142 -- Jimmie Johnson gets two new tires after entering pit road as teammate Jeff Gordon elects to stay out. Dale Earnhardt Jr. stays out as well and takes the wave around.

Lap 141 -- YELLOW FLAG NO. 3: Juan Montoya is into the wall in Turn 1 bringing out the third caution of the day. Most cars head to pit road.

Lap 138 -- Jeff Burton moves up to sixth position.

Lap 136 -- Jeff Gordon moves up to seventh. Mark Martin is starting to make a move on leader Jimmie Johnson.

Lap 135 -- Dale Earnhardt Jr. is penalized for exiting too fast off of pit road.

Lap 133 -- Greg Biffle is on pit road getting tape pulled off the front of the car. Carl Edwards gets a track bar adjustment. Juan Montoya gets an air pressure change and the front grill cleaned off. Jimmie Johnson decides to pit as well, reports the car is tight and gets adjustments.

Lap 131 -- Jimmie Johnson has led the most laps of the day. Jamie McMurray hasn't led a lap today as he inches his way up through the field.

Lap 130 -- Carl Edwards moves up to 11th.

Lap 129 -- Jimmie Johnson's lead over Mark Martin is approaching three seconds.

Lap 127 -- Tony Stewart moves up to the fifth position.

Lap 123 -- Matt Kenseth reports something may be blocking his radiator according to a rising water temperature gauge.

Lap 122 -- Brothers' Kurt and Kyle Busch are racing side-by-side in 12th and 13th position.

Lap 119 -- Jimmie Johnson adds to his lead and is pursued by Mark Martin and Greg Biffle in second and third positions.

Lap 117 -- Elliott Sadler moves a lap down.

Lap 116 -- Brian Vickers up to fourth position after starting in 23rd.

Lap 114 -- Kasey Kahne has just been lapped by Jimmie Johnson.

Lap 113 -- Jimmie Johnson increases his lead to more than two seconds over the field..

Lap 112 -- Brian Vickers started 23rd and is currently running in fifth. He reports over the radio that the car is loose but he thinks he has a car he can work with.

Lap 111 -- Thirty cars are still on the lead lap. Tony Stewart started in 16th and is now in seventh position. Juan Montoya drops to 18th after starting second.

Lap 109 -- The Auto Club 500 has now had two caution, six leaders and 13 lead changes.

Lap 106 -- Jimmie Johnson opens up a one second lead over the field, followed by teammate Mark Martin, in second.

Lap 104 -- Joey Logano runs to tenth position after starting in 19th.

Lap 103 -- Kevin Harvick has dropped all the way back to 21st position.

Lap 101 -- Dale Earnhardt Jr. continues to slowly move up the field and is currently in 17th position.

Lap 100 -- Jimmie Johnson reclaims the lead from Mark Martin.

Lap 99 -- Matt Kenseth moves all the way to third place, behind Jimmie Johnson and Mark Martin.

Lap 98 -- Mark Martin passes Jimmie Johnson, becoming the sixth leader of the day.

Lap 97 -- GREEN FLAG: Jimmie Johnson brings the field to the green on the inside.
1. Jimmie Johnson
2. Mark Martin
3. Brian Vickers
4. Jeff Gordon
5. Greg Biffle

Lap 95 -- Marcos Ambrose gets the free pass. Jamie McMurray is penalized for losing control of tire on pit road.

Lap 94 -- Jeff Burton and Juan Montoya are penalized for speeding on pit road.

Lap 93 -- Several drivers head to pit road. Jimmie Johnson calls the car sketchy, gets four new tires, Clint Bowyer gets an air pressure adjustment. Kevin Harvick gets a wedge adjustment and stalls out leaving pit road, losing a spot.

Lap 92 -- YELLOW FLAG NO. 2: Kasey Kahne gets under Juan Montoya and spins through the grass. There is significant damage to the right front fender as Kahne pits, still on the lead lap.

Lap 90 -- Denny Hamlin has gained 24 positions since the race began, moving up to 19th.

Lap 88 -- Brian Vickers moves up to fifth position followed by Jeff Gordon in sixth.

Lap 87 -- Kevin Harvick continues to trade the lead with Jimmie Johnson as Dale Earnhardt Jr.. moves up a couple of spots to 22nd.

Lap 85 -- Jeff Gordon does battle with Juan Montoya for sixth position.

Lap 84 -- Jimmie Johnson edges past Kevin Harvick in Turn 2 for the lead.

Lap 83 -- Jimmie Johnson and Kevin Harvick battle side-by-side for the lead.

Lap 82 -- Kyle Busch reports that the fin on the left side of the car may be coming loose.

Lap 80 -- Jimmie Johnson catches Kevin Harvick for the ninth lead change of the day.

Lap 79 -- Kevin Harvick, Jimmie Johnson, Mark Martin, Clint Bowyer and Juan Montoya continue to race their Chevrolets in the top five positions.

Lap 76 -- Kevin Harvick maintains the lead over the field, one second ahead of Jimmie Johnson, running on the high side of the track.

Lap 75 -- Thirty cars are still on the lead lap, with five leaders and eight lead changes at this point in the Auto Club 500. Martin Truex is out of the race, reports engine is blown.

Lap 73 -- Brian Vickers moves up to sixth position.

Lap 72 -- Jimmie Johnson is racing one second behind leader Kevin Harvick.

Lap 70 -- Dale Earnhardt Jr. is running about where he started the race, in 25th position. After two pit stops, Earnhardt Jr. reports the No. 88 is loose.

Lap 68 -- After starting at the back of the field, Denny Hamlin moves up to 19th.

Lap 66 -- Mark Martin is running strong in third position and is closing the gap on Jimmie Johnson.

Lap 65 -- Kevin Harvick has the lead in front of Jimmie Johnson.

Lap 63 -- Martin Truex loses power in the No. 56 and limps to pit road.

Lap 61 -- GREEN FLAG: Jimmie Johnson brings the field to the green on the inside.
1. Jimmie Johnson
2. Mark Martin
3. Brian Vickers
4. Juan Montoya
5. Clint Bowyer

Lap 60 -- A.J. Allmendinger gets the free pass.

Lap 59 -- Jimmie Johnson and Kevin Harvick will battle for the lead on the restart.

Lap 58 -- Jimmie Johnson pits, calls for more front grip. Clint Bowyer fought loose conditions and gets air pressure adjustment. Kevin Harvick comes off of pit road just behind Jimmie Johnson after spinning his tires.

Lap 57 -- YELLOW FLAG NO. 1: Debris in Turn 1. The record for most laps under green at Auto Club Speedway is 68. Kevin Harvick maintains lead. Second pit stop of the day is coming up.

Lap 56 -- Jeff Gordon moves up to seventh.

Lap 55 -- Kevin Harvick catches Jimmie Johnson for the lead.

Lap 53 -- Chevrolet leads the top five positions.

Lap 52 -- Marcos Ambrose just went a lap down to the leaders.

Lap 51 -- Kevin Harvick continues to close on Jimmie Johnson and is on the bumper of the leader.

Lap 49 -- Kasey Kahne just brushes the wall but saves the car. After starting in fourth position, he is currently running in tenth.

Lap 48 -- Martin Truex reports tire trouble but elects to stay out.

Lap 47 -- Kevin Harvick moves up to second place behind Jimmie Johnson.

Lap 44 -- Dave Blaney heads to park the No. 66.

Lap 43 -- Jeff Gordon battles Jeff Burton for eighth position.

Lap 42 -- Jimmie Johnson catches Dave Blaney on the low side for the lead.

Lap 41 -- Jimmie Johnson closes the lead on Dave Blaney on a fresh set of tires.

Lap 40 -- Dave Blaney takes the lead in the No. 66, two seconds ahead of Jimmie Johnson.

Lap 39 -- Jeff Gordon cracks the top 10.

Lap 38 -- Martin Truex begs over the radio for more grip from the tires.

Lap 37 -- Matt Kenseth has a slow pit stop. Jimmie Johnson gets an adjustment to loosen up the car and four new tires. Kevin Harvick makes a track bar adjustment. Jeff Gordon gets an air pressure change.

Lap 36 -- David Ragan and Greg Biffle head to pit road. Boris Said parks his car in the garage.

Lap 35 -- Sunday's first pit stop should be coming in the next two or three laps for most drivers.

Lap 34 -- Clint Bowyer moves up to third.

Lap 32 -- Kevin Harvick moves into second place behind Jimmie Johnson, who maintains a two second lead.

Lap 31 -- Brian Vickers is up to sixth place after starting in 23rd position.

Lap 30 -- Juan Montoya brushes the wall but reports minimal, if any damage.

Lap 29 -- Jimmie Johnson gets past Juan Montoya to lead the field.

Lap 27 -- Martin Truex reports a fast car and is moving up the field. Joe Nemechek takes his car to the garage.

Lap 26 -- Several drivers are reporting loose cars and call for changes at first pit stop.

Lap 25 -- Carl Edwards struggles to find a groove in the No. 99 and is running in 16th position.

Lap 23 -- Jimmie Johnson begins to close on Juan Montoya, just two seconds behind the leader.

Lap 22 -- Jimmie Johnson gives Chad Knaus a report on the new tires, calls track dusty but likes where he is.

Lap 21 -- Kevin Harvick charges up to fourth position.

Lap 19 -- Juan Montoya continues to run strong and maintains a three second leave over Jimmie Johnson.

Lap 18 -- Jamie McMurray continues to fade from the front, running in 18th position.

Lap 17 -- Kevin Harvick reports his car is extremely loose.

Lap 16 -- Tony Stewart may have swiped the wall in Turn 4 and is slowing down.

Lap 15 -- Jeff Gordon is running in 14th position.

Lap 12 -- Juan Montoya opens up a lead of more than three seconds and is being pursued by Jimmie Johnson.

Lap 11 -- David Reutimann makes a run up to eighth position.

Lap 9 -- Jimmie Johnson moves up two spots to third.

Lap 8 -- Kasey Kahne is running over 200 mph into Turn 1 and moves into second place.

Lap 6 -- Juan Montoya led more than 60 laps at Auto Club in October and continues to lead the field today.

Lap 5 -- Pole winner Jamie McMurray drops back four positions to fifth, 2.40 seconds off the lead.

Lap 3 -- Juan Montoya continues to lead the field, Kyle Busch and Mark Martin do battle in the fifth and sixth positions.

Lap 2 -- Jimmie Johnson splits the middle and drops to fifth position.

Lap 1 -- Juan Montoya gets off to a great start and leads the first lap.

3:19 p.m. -- GREEN FLAG: Jamie McMurray brings the field to the green and the Auto Club 500 is under way.

3:14 p.m. -- Denny Hamlin will have to start from the rear after an engine change.

3:13 p.m. -- The cars are off pit road and taking their warm-up laps.

3:08 p.m. -- Actor Andy Garcia gives the command: "Gentlemen, start your engines!"

3:01 p.m. -- Katharine McPhee, Season Five American Idol runner-up, performs the national anthem.

3 p.m. -- Motor Racing Outreach's Jeff Hamilton gives today's invocation.

2 p.m. -- Pre-race coverage of the Auto Club 500 is under way on FOX.

1:30 p.m. ET -- Drivers and spectators woke up in Fontana on Sunday to cloudy skies and a temperature of 53 degrees. Temperatures are expected to hold steady during the race and with less than a 30 percent chance of rain, weather shouldn't be a huge factor in Sunday's Auto Club 500. Green is scheduled for 3:16 p.m. with Jamie McMurray on the pole.