NASCAR results: William Byron leads 176 laps, wins all three stages in Las Vegas

William Byron came out of the pits first ahead of teammate Kyle Larson before a two-lap restart and won the Pennzoil 400 in Las Vegas. The race was extended four laps to 271 after Aric Almirola hit the wall with four laps to go.

Pennzoil 400 results

1. William Byron (24), Hendrick Motorsports Chevrolet

2. Kyle Larson (5), Hendrick Motorsports Chevrolet

3. Alex Bowman (48), Hendrick Motorsports Chevrolet

4. Bubba Wallace (23), 23XI Racing Toyota

5. Christopher Bell (20), Joe Gibbs Racing Toyota

6. Austin Cindric (2), Team Penske Ford

7. Martin Truex Jr. (19), Joe Gibbs Racing Toyota

8. Justin Haley (31), Kaulig Racing Chevrolet

9. Kevin Harvick (4), Stewart-Haas Racing Ford

10. Daniel Suárez (99), Trackhouse Racing Chevrolet

11. Denny Hamlin (11), Joe Gibbs Racing Toyota

12. Ross Chastain (1), Trackhouse Racing Chevrolet

13. Ryan Blaney (12), Team Penske Ford

14. Kyle Busch (8), Richard Childress Racing Chevrolet

15. Tyler Reddick (45), 23XI Racing Toyota

16. Aric Almirola (10), Stewart-Haas Racing Fordd\

17. Brad Keselowski (6), RFK Racing Ford

18. A.J. Allmendinger (16), Kaulig Racing Chevrolet

19. Erik Jones (43), Legacy Motor Club Chevrolet

20. Corey LaJoie (7), Spire Motorsports Chevrolet

21. Chris Buescher (17), RFK Racing Ford

22. Ty Gibbs (54), Joe Gibbs Racing Toyota

23. Ryan Preece (41), Stewart-Haas Racing Ford

24. Ricky Stenhouse Jr. (47), JTG Daugherty Racing Chevrolet

25. Michael McDowell (34), Front Row Motorsports Ford

26. Harrison Burton (21), Wood Brothers Racing Ford

27. Austin Dillon (3), Richard Childress Racing Chevrolet

28. Chase Briscoe (14), Stewart-Haas Racing Ford

29. Josh Berry (9), Hendrick Motorsports Chevrolet

30. Noah Gragson (42), Legacy Motor Club Chevrolet

31. Todd Gilliland (38), Front Row Motorsports Ford

32. B.J. McLeod (78), Live Fast Motorsports Ford

33. J.J. Yeley (15), Rick Ware Racing Ford

34. Ty Dillon (77), Spire Motorsports Chevrolet

35. Cody Ware (51), Rick Ware Racing Ford

36. Joey Logano (22), Team Penske Ford

Pennzoil 400 starting grid

1. Joey Logano (22), Team Penske Ford

2. William Byron (24), Hendrick Motorsports Chevrolet

3. Ryan Blaney (12), Team Penske Ford

4. Ty Gibbs (54), Joe Gibbs Racing Toyota

5. Kyle Busch (8), Richard Childress Racing Chevrolet

6. Kyle Larson (5), Hendrick Motorsports Chevrolet

7. Brad Keselowski (6), RFK Racing Ford

8. Ross Chastain (1), Trackhouse Racing Chevrolet

9. Austin Cindric (2), Team Penske Ford

10. Christopher Bell (20), Joe Gibbs Racing Toyota

11. Alex Bowman (48), Hendrick Motorsports Chevrolet

12. Denny Hamlin (11), Joe Gibbs Racing Toyota

13. Bubba Wallace (23), 23XI Racing Toyota

14. Kevin Harvick (4), Stewart-Haas Racing Ford

15. Martin Truex Jr. (19), Joe Gibbs Racing Toyota

16. Ricky Stenhouse Jr. (47), JTG Daugherty Racing Chevrolet

17. Michael McDowell (34), Front Row Motorsports Ford

18. Chris Buescher (17), RFK Racing Ford

19. Corey LaJoie (7), Spire Motorsports Chevrolet

20. Chase Briscoe (14), Stewart-Haas Racing Ford

21. Aric Almirola (10), Stewart-Haas Racing Ford

22. Erik Jones (43), Legacy Motor Club Chevrolet

23. A.J. Allmendinger (16), Kaulig Racing Chevrolet

24. Daniel Suárez (99), Trackhouse Racing Chevrolet

25. Noah Gragson (42), Legacy Motor Club Chevrolet

26. Austin Dillon (3), Richard Childress Racing Chevrolet

27. Justin Haley (31), Kaulig Racing Chevrolet

28. Todd Gilliland (38), Front Row Motorsports Ford

29. J.J. Yeley (15), Rick Ware Racing Ford

30. Cody Ware (51), Rick Ware Racing Ford

31. Ryan Preece (41), Stewart-Haas Racing Ford

32. Josh Berry (9), Hendrick Motorsports Chevrolet

33. Ty Dillon (77), Spire Motorsports Chevrolet

34. Tyler Reddick (45), 23XI Racing Toyota

35. Harrison Burton (21), Wood Brothers Racing Ford

36. B.J. McLeod (78), Live Fast Motorsports Ford

Pennzoil 400 broadcast schedule

All times ET

Saturday, March 4 1:35-3:30 p.m.: Practice and qualifying (FS2 until 2 p.m., FS1 from 2 p.m.)

Sunday, March 5 3:30-6:30 p.m.: Pennzoil 400

Pennzoil 400 details

Venue: Las Vegas Motor Speedway (1.5-mile tri-oval with 20-degree banked turns)
Length: 267 laps for 400.5 miles
Last year's winner: Alex Bowman

Chase Elliott out with broken leg

Hendrick Motorsports' Chase Elliott — the 2020 series champion — will not be in the car in Las Vegas after he fractured his left tibia snowboarding in Colorado during the week. Elliott underwent successful surgery Friday and was released from the hospital Saturday. The team announced there is no timetable for his return, only noting it will take "several weeks" for him to get back into the car. Xfinity series competitor Josh Berry, who won the fall race at Las Vegas in 2022 will substitute for Eilliott this weekend.

Top drivers and best bets for the Pennzoil 400

The field features eight previous winners including four multiple-time winners (Kevin Harvick, Brad Keselowski, Joey Logano and Martin Truex Jr.). Parity reigns at Las Vegas where no one has won consecutive races since Jimmie Johnson in 2007 and each of the last three races were won by the three engine manufacturers. Las Vegas native – and last week’s winner at Auto Club Speedway – Kyle Busch is the favorite over at BetMGM with 6.5-to-1 odds.

Best odds to win

• Kyle Busch +650

• Kyle Larson +800

• Ross Chastain +900

• Joey Logano +900

• Ryan Blaney +1100

Yahoo Sports’ Nick Bromberg suggests finding good mid-tier value in Truex Jr. (+1200) and Tyler Reddick (+2000) and also notes Brad Keselowski (+4100) has good longshot value as he has won three times in the desert.

Pennzoil 400 entries list

1. Ross Chastain (1), Trackhouse Racing Chevrolet

2. Austin Cindric (2), Team Penske Ford

3. Austin Dillon (3), Richard Childress Racing Chevrolet

4. Kevin Harvick (4), Stewart-Haas Racing Ford

5. Kyle Larson (5), Hendrick Motorsports Chevrolet

6. Brad Keselowski (6), RFK Racing Ford

7. Corey LaJoie (7), Spire Motorsports Chevrolet

8. Kyle Busch (8), Richard Childress Racing Chevrolet

9. Josh Berry (9), Hendrick Motorsports Chevrolet

10. Aric Almirola (10), Stewart-Haas Racing Ford

11. Denny Hamlin (11), Joe Gibbs Racing Toyota

12. Ryan Blaney (12), Team Penske Ford

13. Chase Briscoe (14), Stewart-Haas Racing Ford

14. J.J. Yeley (15), Rick Ware Racing Ford

15. A.J. Allmendinger (16), Kaulig Racing Chevrolet

16. Chris Buescher (17), RFK Racing Ford

17. Martin Truex Jr. (19), Joe Gibbs Racing Toyota

18. Christopher Bell (20), Joe Gibbs Racing Toyota

19. Harrison Burton (21), Wood Brothers Racing Ford

20. Joey Logano (22), Team Penske Ford

21. Bubba Wallace (23), 23XI Racing Toyota

22. William Byron (24), Hendrick Motorsports Chevrolet

23. Justin Haley (31), Kaulig Racing Chevrolet

24. Michael McDowell (34), Front Row Motorsports Ford

25. Todd Gilliland (38), Front Row Motorsports Ford

26. Ryan Preece (41), Stewart-Haas Racing Ford

27. Noah Gragson (42), Legacy Motor Club Chevrolet

28. Erik Jones (43), Legacy Motor Club Chevrolet

29. Tyler Reddick (45), 23XI Racing Toyota

30. Ricky Stenhouse Jr. (47), JTG Daugherty Racing Chevrolet

31. Alex Bowman (48), Hendrick Motorsports Chevrolet

32. Cody Ware (51), Rick Ware Racing Ford

33. Ty Gibbs (54), Joe Gibbs Racing Toyota

34. Ty Dillon (77), Spire Motorsports Chevrolet

35. B.J. McLeod (78), Live Fast Motorsports Ford

36. Daniel Suárez (99), Trackhouse Racing Chevrolet

Weather for the Pennzoil 400

The forecast calls for nearly perfect racing conditions on Saturday and Sunday with partly cloudy skies, highs in the mid-60s and no chance of rain.