Lap-by-Lap: Daytona

CHECKERED FLAG -- Jamie McMurray wins the Pepsi 400 by inches ahead of Kyle Busch at the line.

WHITE FLAG -- LEAD CHANGE: Kyle Busch edges to lead the final lap.

Lap 159 -- Two-by-two behind leader Jamie McMurray with Kyle Busch charging.

Lap 158 -- LEAD CHANGE: Jamie McMurray gets the lead thanks to a push from Jeff Gordon on the outside.

Lap 157 -- LEAD CHANGE: Kyle Busch leads the lap by a nose ahead of Jamie McMurray as they battle side-by-side.

Lap 156 -- LEAD CHANGE: Jamie McMurray swoops down to take the lead.

Lap 155 -- It's two-by-two behind leader Jeff Gordon with Jamie McMurray battling Kyle Busch.

Lap 154 -- GREEN FLAG: Jeff Gordon gets the race going single-file.
1. Jeff Gordon
2. Casey Mears
3. Jamie McMurray
4. Clint Bowyer
5. Jimmie Johnson

Lap 151 -- YELLOW FLAG NO. 8: Joe Nemechek and Brian Vickers tangle and spin on the backstretch. Nemechek lost control and touchced Vickers in the turn, sending both spinning.

Lap 151 -- LEAD CHANGE: Jeff Gordon gets a nose in front of Casey Mears as cars begin crashing in the back of the pack.

Lap 149 -- Jimmie Johnson takes second position from Clint Bowyer.

Lap 148 -- LEAD CHANGE: Casey Mears gets help from Jimmie Johnson and passes Clint Bowyer on the outside for the lead.

Lap 148 -- GREEN FLAG: Clint Bowyer gets the race back under way.
1. Clint Bowyer
2. Casey Mears
3. Jimmie Johnson
4. Kyle Busch
5. Jeff Gordon

Lap 146 -- Martin Truex Jr. dives onto pit road to change inside tires. Several other cars near the back come in for tires.

Lap 145 -- David Gilliland is on pit road to repair the minor damage.

Lap 144 -- YELLOW FLAG NO. 7: David Gilliland spins around while running in the middle of the field. No one else is involved in the crash. Gilliland lost it, touched Dave Blaney, then spun to the inside.

Lap 142 -- LEAD CHANGE: Clint Bowyer goes on the outside line and captures the lead as everyone is two- and three-wide jockeying for position.

Lap 140 -- Kasey Kahne gets out of the draft in the middle line and loses several positions. He was running second.

Lap 138 -- GREEN FLAG: Casey Mears gets the race going:
1. Casey Mears
2. Kasey Kahne
3. Martin Truex Jr.
4. David Gilliland
5. Clint Bowyer

Lap 135 -- Casey Mears stays out to lead, and Kasey Kahne does not pit.

Lap 134 -- The leaders head to pit road:
• Kurt Busch gets four tires and no adjustments in 14 seconds
• David Gilliland is out in 9.2 seconds with two tires
• Martin Truex Jr. gains three positions and is off first
• Matt Kenseth gets adjustments and four tires (Continued)