Lap-by-Lap: Pocono

CHECKERED FLAG -- Kurt Busch wins the Pennsylvania 500 at Pocono, his first victory in 51 races.

WHITE FLAG -- Kurt Busch has 2.5 miles to go with a 3.847-second lead. Dale Earnhardt Jr. continues to hang on to second position.

Lap 198 -- Kurt Busch continues to cruise while drivers shuffle for position at the bottom of the top 10.

Lap 195 -- With five laps to go, Kurt Busch has a 2.554-second lead ahead of Dale Earnhardt Jr.

Lap 190 -- Denny Hamlin is reeling in Dale Earnhardt Jr. for second position.

Lap 188 -- Kurt Busch is clocking the fastest lap times as the leader.

Lap 185 -- GREEN FLAG: Kurt Busch gets the race under way again.
1. Kurt Busch
2. Dale Earnhardt Jr.
3. Denny Hamlin
4. Jeff Gordon
5. Jimmie Johnson

Lap 183 -- Carl Edwards is on pit road to check for damage.

Lap 181 -- YELLOW FLAG NO. 7: Big crash in Turn 3, involving David Gilliland, Reed Sorenson, Brian Vickers and Jamie McMurray. Carl Edwards touched Sorenson, sending him spinning and taking out three others in the chain reaction. McMurray got the most damage with a crunched hood. Cars involved:
• Carl Edwards
• Reed Sorenson
• David Gilliland
• Jamie McMurray
• Brian Vickers

Lap 179 -- GREEN FLAG: Kurt Busch gets the race back under way.
1. Kurt Busch
2. Dale Earnhardt Jr.
3. Denny Hamlin
4. Jeff Gordon
5. Tony Stewart

Lap 175 -- LEAD CHANGE: Kurt Busch inherits the lead when Kyle Busch makes his pit stop.

Lap 173 -- YELLOW FLAG NO. 6: David Ragan spins due to a flat tire. He spun coming out of Turn 1 directly in front of Kyle Busch.

Lap 173 -- LEAD CHANGE: Kyle Busch leads the lap as pit stops cycle through.

Lap 172 -- Kurt Busch is in for his stop. Four tires and fuel, as well as an air-pressure adjustment in 14.2 seconds.

Lap 171 -- Dale Earnhardt Jr. gives up second spot to get four fresh tires. He's tight and needs rear grip. No chassis adjustments. Jeff Gordon is also in, as well as Denny Hamlin.

Lap 170 -- Jimmie Johnson is on pit road for tires as crew chief Ron Malec serves as his rear tire carrier. Ryan Newman is in, as is Martin Truex Jr. and Matt Kenseth.

Lap 169 -- Tony Stewart and Kevin Harvick are on pit road for their final stops of the day. Four tires for both drivers, but Harvick has a long stop. Kasey Kahne is in for tires and changes.

Lap 162 -- Kurt Busch has built a 2.289-second lead ahead of Dale Earnhardt Jr.

Lap 154 -- LEAD CHANGE: Kurt Busch runs down Dale Earnhardt Jr. and gets around him to take the lead once again.

Lap 146 -- Kurt Busch has made his way from ninth to second since the restart after passing Reed Sorenson.

Lap 145 -- LEAD CHANGE: Dale Earnhardt Jr. moves around Reed Sorenson to take the point after spinning earlier in the day.

Lap 144 -- Dale Earnhardt Jr. charges to second position behind leader Reed Sorenson.

Lap 143 -- GREEN FLAG: Reed Sorenson leads the field to green. Kurt Busch will restart ninth after a lugnut problem on pit road.
1. Reed Sorenson
2. Greg Biffle
3. Casey Mears
4. Matt Kenseth
5. Dale Earnhardt Jr.

Lap 142 -- Martin Truex Jr. is back on pit road, again trying to fix his front valence and the downforce problems it causes. (Continued)