Lap-by-Lap: Las Vegas (cont'd)

Lap 49 -- LEAD CHANGE: Carl Edwards and Greg Biffle hit pit road giving the lead to Scott Riggs. While Edwards and Biffle were on pit road, Sam Hornish Jr. crashed into the wall but left no debris and was able to get pit road.

Lap 48 -- Jeremy Mayfield is on pit road for a scheduled pit stop.

Lap 45 -- Jeff Gordon is down to seventh as Mark Martin passes him. Kyle Busch falls two spots to fifth as Kurt Busch and Scott Riggs pass him.

Lap 42 -- Roush Fenway teammates Carl Edwards and Greg Biffle have opened up a more than three second lead on third-place Kyle Busch.

Lap 40 -- Officials say the No. 24 looks clean -- no smoke.

Lap 39 -- Officials have an eye on Jeff Gordon looking for smoke out of the No. 24 Chevy.

Lap 35 -- Kyle Busch and Kurt Busch both pass Jeff Gordon for third and fourth.

Lap 33 -- Jeff Gordon passes Kyle Busch for third.

Lap 30 -- Carl Edwards has opened up a 1.3-second lead on Greg Biffle, who passed Kyle Busch for second.

Lap 28 -- Greg Biffle has caught Kyle Busch and is looking to pass him for second.

Lap 22 -- Greg Biffle passes Jeff Gordon for third. Kurt Busch is up to fifth.

Lap 21 -- LEAD CHANGE: Carl Edwards passes Kyle Busch for the lead.

Lap 20 -- Kyle Busch and Carl Edwards are side-by-side for the lead.

Lap 18 -- Mark Martin is fading as he is down to eighth. Jeff Gordon moves up to third.

Lap 16 -- Carl Edwards is challenging Kyle Busch for the lead.

Lap 12 -- GREEN FLAG: Kyle Busch brings the field to the green.
1. Kyle Busch
2. Carl Edwards
3. Mark Martin
4. Jeff Gordon
5. Greg Biffle

Lap 10 -- Most of the cars hit pit road although 18 stay out.
• Matt Kenseth with right side tires and they lower the track bar
• Dale Earnhardt Jr. with a four-tire stop

Lap 8 -- YELLOW FLAG NO. 1: Jamie McMurray spins coming out of Turn 4 but doesn't hit anything. David Reutimann gets the free pass and will get one of his laps back.

Lap 5 -- As Reutimann was trying to drop to pit road his right-rear tire blew but he didn't leave any debris on the track so the race stays green.

Lap 2 -- David Reutimann hit the wall and has some damage to the rear of his car. NASCAR has black-flagged him.

Lap 1 -- Kyle Busch gets a great start and he leads the first lap.

4:48 p.m. -- GREEN FLAG: Kyle Busch brings the field to speed as the UAW-Dodge 400 is under way.

4:45 p.m. -- Clint Bowyer and Kasey Kahne will start the race from the rear of the field. Bowyer is in a back-up car after crashing in final practice and Kahne changed his engine.

4:41 p.m. -- The cars are rolling and the drivers are getting ready for 267 laps at the 1.5-mile LVMS track.

4:38 p.m. -- John Byers, co-director UAW-Chrysler National Training Center - UAW gives the command: "Gentlemen, start your engines!"

4:31 p.m. -- Mamma Mia star Carol Linnae Johnson performs the national anthem.

4:30 p.m. -- LVMS chaplain Kenny Farmer delivers the Invocation.

3:30 p.m. -- FOX's coverage of the UAW-Dodge 400 is under way.

2:30 p.m. -- Rain won't be an issue this week at Las Vegas Motor Speedway. The UAW-Dodge 400 will run under sunny skies with a high of 64 degrees. Currently it's 54 degrees and breezy.

• Final practice shows high line the fastest and riskiest
• Martin still remembers inaugural Vegas win
• Combination of fast track, new car too much for some
• Harvick, Roush concerned with Toyota horsepower
• Caraviello: Busch boys know Vegas is more than just the Strip
• Frye bringing substance to Red Bull's established style
• Kyle Busch continues to ride wave with Vegas pole
• Smith proposes date swap between California, Atlanta
• Kahne hopes early success a sign for the entire season
• Las Vegas where Hendrick, Johnson began to hit stride