Lap 159 -- WHITE FLAG: Jimmie Johnson tries different lines to avoid Mark Martin. Martin pulls close off Turn 2, but Johnson breaks his draft.

Lap 158 -- Two laps to go and the difference from Jimmie Johnson to Mark Martin is two car-lengths.

Lap 157 -- Three laps to go and Jimmie Johnson is moving around the track trying to keep Mark Martin from picking up any draft from his car.

Lap 156 -- The leaders are approaching traffic and Mark Martin is now on the bumper of Jimmie Johnson hunting the lead.

Lap 155 -- Five laps to go with Jimmie Johnson leading Mark Martin.

Lap 153 -- Jimmie Johnson pulls away from Mark Martin a little. The lead is now 0.423 seconds.

Back to School Sale!

Lap 151 -- Juan Montoya and Joey Logano battle hard for 11th place. Montoya nudges Logano, but concedes the position.

Lap 150 -- With 10 laps to go, Jimmie Johnson leads Mark Martin by 0.618 seconds. Martin has the fastest car on the track this lap.

Lap 146 -- Matt Kenseth is running 10th and having a solid day. Meanwhile, Michael Waltrip's crew pushes the car down pit road and to the garage.

Lap 143 -- Jimmie Johnson leads Mark Martin by 0.329 seconds.

Lap 140 -- With 20 laps to go, Juan Montoya is in 14th position. He restarted in 12th.

Lap 138 -- Jeff Burton is on pit road for tires. He has a flat right-front tire.

Lap 138 -- LEAD CHANGE: Jimmie Johnson makes the outside lane work on the restart and pulls ahead of Mark Martin for the top spot.

Lap 137 -- GREEN FLAG: Mark Martin gets the race going again from the inside lane.

1. Mark Martin

2. Jimmie Johnson

3. Greg Biffle

4. Tony Stewart

5. Brian Vickers

Lap 133 -- A handful of cars pit for service.

Lap 130 -- Pit road is still closed as cleanup continues.

Lap 129 -- Pit road is closed as officials clean up oil on the track from Dale Earnhardt Jr.'s car.

Lap 128 -- YELLOW FLAG NO. 3: Dale Earnhardt Jr.'s car goes up in smoke as he comes off Turn 4. He heads to the garage.

Lap 128 -- LEAD CHANGE: Mark Martin is the new leader when Casey Mears pits.

Lap 127 -- LEAD CHANGE: Brian Vickers pits, giving the lead to Casey Mears. Juan Montoya is clocked for speeding on entry and exit of pit road. He returns to serve his pass-through penalty. The driver is disputing the penalty.

Lap 126 -- LEAD CHANGE: Juan Montoya pits for a slight air-pressure adjustment to the right-rear. He gets tires and fuel. Tony Stewart pits for a minor adjustment and tires. Mark Martin pits for fuel and tires. Jimmie Johnson pits. Brian Vickers is the leader.

Lap 125 -- Kevin Harvick is in for air pressure and a track-bar change. Carl Edwards pits for service on his car.

Lap 124 -- Greg Biffle gives up his top-five position for a pit stop to begin green-flag service. Kasey Kahne also pits for tires and fuel. Martin Truex Jr. is in. The drivers pitting this early likely won't be able to make it to the end of the race.

Lap 120 -- David Reutimann and Kevin Harvick are battling for 10th position. Reutimann has it, but Harvick is on his bumper and looking inside.

Lap 116 -- Mark Martin has the fastest car this lap from his second position.

Lap 113 -- Bill Elliott is having a solid day running in 15th position. He started fourth and has not fallen out of the top 20 the entire race.

Lap 110 -- Jimmie Johnson dips below Brian Vickers and finally gets around him to take third position. Johnson had followed Vickers for nearly 10 laps.

Lap 106 -- Kevin Harvick has the fastest car this lap from the 11th position.

Lap 103 -- It appears that leader Juan Montoya and Brian Vickers can for sure make it the rest of the way on one pit stop. The other leaders may need more than that, or to conserve fuel.

Lap 101 -- Jimmie Johnson closes in on the rear bumper of Brian Vickers as the two run third and fourth, respectively.

Lap 99 -- Reed Sorenson runs in 12th position and continues his solid day.

Lap 96 -- Juan Montoya leads by 5.500 seconds after green-flag pit stops.

1. Juan Montoya

2. Mark Martin

3. Brian Vickers

4. Jimmie Johnson

5. Tony Stewart

Lap 95 -- LEAD CHANGE: Casey Mears pits for tires and changes. Juan Montoya takes the lead once again.

Lap 93 -- LEAD CHANGE: Juan Montoya pits from the lead position. No major adjustments, just tires and fuel. Brian Vickers also pits for fuel and tires; no adjustments. Jamie McMurray pits for tires. Casey Mears leads.

Lap 92 -- More cars hit pit road in a large pack:

• Mark Martin pits for air pressure, tires and fuel

• Jimmie Johnson is tight and asks for air-pressure changes

• Greg Biffle makes his pit stop for tires and fuel

Lap 91 -- A flurry of cars hit pit road:

• Jeff Gordon gets tires and minor changes on the track bar

• Tony Stewart gets three rounds of wedge in the rear

• Kasey Kahne gets four tires and fuel

• Kevin Harvick stops for gas and tires

Lap 90 -- Dale Earnhardt Jr. is continuing his strong run and hanging in seventh position.

Lap 85 -- Joey Logano is up to 17th position after starting the race from the back of the grid.

Lap 82 -- Juan Montoya leads Mark Martin by 4.103 seconds with green-flag pit stops approaching in about 10 laps.

Lap 80 -- Juan Montoya continues to lead as the race reaches the halfway point. He has led 74 of the 80 laps.

Lap 77 -- All four Hendrick cars are running in the top 10.

Lap 74 -- Clint Bowyer runs in 11th position with a tight race car. His teammate, Kevin Harvick, is behind him in 12th.

Lap 70 -- Michael Waltrip is on pit road with the hood up. His car is overheating.

Lap 69 -- Sam Hornish Jr. has a right-side tire going down after contact with the wall. He got loose coming off the corner and brushed the wall.

Lap 68 -- Jeff Gordon is in the top 10 now running in 10th position. He started in 22nd.

Lap 66 -- Jimmie Johnson moves around Tony Stewart to take fifth position.

Lap 63 -- GREEN FLAG: Juan Montoya gets the race going again from the inside lane.

1. Juan Montoya

2. Mark Martin

3. Brian Vickers

4. Greg Biffle

5. Jimmie Johnson

Lap 61 -- Kyle Busch's car is in the garage as his team works on the damage. He sits in 37th position and currently would be outside of the top 12 in points as they stand now.

Lap 59 -- Leaders head to pit road:

• Tony Stewart pits for a small adjustment to the track bar

• Juan Montoya gets a track-bar adjustment for a tight car

• Mark Martin gets no changes with his tires

• Greg Biffle gains three positions with a fast stop

Lap 58 -- YELLOW FLAG NO. 2: Kyle Busch blows a right-front tire and smashes into the wall. He has big right-side damage and heads to pit road.

Lap 55 -- Kasey Kahne is running in 12th position. He has fallen back to 15th in the first green-flag run, but after pit stops has settled into 12th.

Lap 53 -- David Reutimann is having a solid run and is in ninth position. He started in fifth.

Lap 51 -- Brian Vickers has the fastest car on the track this lap. He runs in fourth.

Lap 49 -- Juan Montoya continues to lead and has said nothing on the radio. He has an advantage of 2.425 seconds ahead of Mark Martin.

Lap 47 -- Greg Biffle has moved into the top 10 and now runs in eighth position.

Lap 45 -- Denny Hamlin's team has the car in the garage and is reporting a broken driveshaft. The shifter broke off when Hamlin was coming to pit road for his stop.

Lap 43 -- Mark Martin is holding on to second position, but he says he is battling a really loose car.

Lap 41 -- Kurt Busch is in 35th position and one lap down after having to return to pit road with a loose wheel.

Lap 39 -- Kyle Busch is up to ninth place after pit stops. Busch started the race in 20th.

Lap 36 -- After green-flag pit stops, Juan Montoya leads by 2.169 seconds.

1. Juan Montoya

2. Mark Martin

3. Brian Vickers

4. Tony Stewart

5. Jimmie Johnson

Lap 35 -- LEAD CHANGE: David Gilliland pits, giving the lead back to Juan Montoya.

Lap 34 -- Denny Hamlin coasts onto pit road to his stall. Kurt Busch returns to pit road with a loose wheel.

Lap 33 -- LEAD CHANGE: Tony Stewart pits for an air-pressure adjustment, tires and fuel. Denny Hamlin slowly comes back to pit road with potential transmission problems. His car is running but will not go into gear. David Gilliland leads.

Lap 32 -- LEAD CHANGE: Juan Montoya pits for no changes and tires. Dale Earnhardt Jr. pits for tires and fuel. Jimmie Johnson gets new tires. The leader is now Tony Stewart.

Lap 31 -- Jeff Burton and Matt Kenseth make their pit stops. Brian Vickers gives up fourth position to pit and get minor air-pressure changes. Kasey Kahne is in for track-bar and wedge adjustments. Jeff Gordon pits for four tires.

Lap 30 -- Kyle Busch pits for four tires and fuel. No changes this early. Joey Logano is also in for his stop for four tires.

Lap 30 -- Kevin Harivck is on pit road to begin green-flag pit stops. Harvick takes four tires and fuel.

Lap 29 -- Joey Logano is still trying to move by Matt Kenseth for 22nd position. He has chased Kenseth for several laps and has had difficulty finding a hole to pass.

Lap 27 -- Reed Sorenson has fallen from his ninth-place starting spot to 17th in the running order.

Lap 25 -- Joey Logano is up to 23rd position after starting at the rear of the field due to an engine change.

Lap 23 -- Tony Stewart moves back into third position after losing the spot to Brian Vickers for several laps.

Lap 21 -- Leader Juan Montoya has the fastest car on the track this lap. He leads Mark Martin by 1.811 seconds.

Lap 19 -- Jimmie Johnson is up to sixth position after starting in 16th. He is trailing Dale Earnhardt Jr. and closing in.

Lap 17 -- Carl Edwards is running in 33rd and has an ill-handling race car. He started in 41st.

Lap 15 -- Second-place Mark Martin has the fastest car this lap.

Lap 12 -- Scott Speed makes an unscheduled stop after swiping the wall. He takes four tires.

Lap 8 -- Tony Stewart has quickly moved to fourth from his seventh-place starting position.

Lap 5 -- LEAD CHANGE: Mark Martin bobbles and allows Juan Montoya to take the lead. Dale Earnhardt Jr. also passes Martin.

Lap 5 -- GREEN FLAG: Mark Martin gets the race going again from the inside lane.

1. Mark Martin

2. Juan Montoya

3. Dale Earnhardt Jr.

4. Bill Elliott

5. Brian Vickers

Lap 4 -- Elliott Sadler takes his car to the garage.

Lap 3 -- Elliott Sadler is being black-flagged for smoke coming from his car. He pits and the team goes under the hood to check the lines.

Lap 2 -- Reports are that Elliott Sadler's car may be smoking.

Lap 1 -- YELLOW FLAG NO. 1: Robby Gordon spins coming off Turn 4 and slides to a stop. Mark Martin leads the first lap.

2:27 p.m. -- GREEN FLAG: Mark Martin and Juan Montoya get the Allstate 400 at the Brickyard under way from Indianapolis Motor Speedway.