Lap-by-Lap: Daytona

CHECKERED FLAG: Ryan Newman wins the 50th Daytona 500 with drafting help from teammate Kurt Busch as they pass Tony Stewart on the backstretch of the final lap.

Lap 199 -- Tony Stewart leads the way on the final lap.

Lap 198 -- Single-file racing leads the way with Tony Stewart pacing.

Lap 197 -- LEAD CHANGE: Tony Stewart takes the lead on the outside and Jeff Burton drops without drafting help. Ryan Newman is second.

Lap 197 -- GREEN FLAG: Jeff Burton gets the race back under way.
1. Jeff Burton
2. Kyle Busch
3. Ryan Newman
4. Tony Stewart
5. Ryan Newman

Lap 195 -- YELLOW FLAG NO. 7: Casey Mears slaps the wall and has major damage. He was running third at the time. Mears went high to block Tony Stewart, but Stewart's momentum didn't give him enough room and sent Mears into the wall.

Lap 194 -- Kyle Busch has moved into second position and is trailing Jeff Burton.

Lap 193 -- Everyone is single-file with seven laps remaining.

Lap 192 -- GREEN FLAG: Jeff Burton gets the race back under way.
1. Jeff Burton
2. Greg Biffle
3. Ryan Newman
4. Kyle Busch
5. Casey Mears

Lap 190 -- Denny Hamlin is on pit road as the crew looks at his car.

Lap 189 -- YELLOW FLAG NO. 6: Dave Blaney brushes the wall during four-wide racing. Blaney got touched by Kevin Harvick, slid up the track and rode the wall.

Lap 188 -- LEAD CHANGE: Jeff Burton moves to the outside of Ryan Newman to take the lead.

Lap 187 -- GREEN FLAG: Ryan Newman gets the race back under way.
1. Ryan Newman
2. Juan Montoya
3. Jeff Burton
4. Greg Biffle
5. Kyle Busch

Lap 184 -- Clint Bowyer comes to pit road for new tires and to check for damage.

Lap 183 -- LEAD CHANGE: Ryan Newman inherits the lead due to Bowyer's spin.

Lap 183 -- YELLOW FLAG NO. 5: Clint Bowyer gets turned around while leading the race in a three-wide battle. Juan Montoya clipped the rear of Bowyer on the frontstretch. Bowyer simply spins and gets no damage.

Lap 181 -- LEAD CHANGE: Clint Bowyer takes the lead and shuffles Dale Earnhardt Jr. to the top lane.

Lap 180 -- GREEN FLAG: Dale Earnhardt Jr. gets the race back under way.
1. Dale Earnhardt Jr.
2. Clint Bowyer
3. Ryan Newman
4. Jeff Burton
5. Greg Biffle

Lap 177 -- LEAD CHANGE: Dale Earnhardt Jr. stays out and takes the lead.

Lap 177 -- Five leaders stay out but others pit:
• Kyle Busch overshoots his pit stall
• Tony Stewart is in for tires and to tighten the car
• Kasey Kahne is first out by gaining four positions
• Elliott Sadler is second out