A review of the testing speeds from Thursday and Friday at Las Vegas Motor Speedway.

THURSDAY: MORNING SESSION

Position Number Driver Speed (mph)

1. Chevrolet Wheel Force Ross Chastain 183.163 2. 48 Jimmie Johnson 178.885 3. 47 Ryan Preece 177.678 4. 3 Austin Dillon 177.556 5. 43 Bubba Wallace 177.381 6. 14 Clint Bowyer 177.107 7. 2 Brad Keselowski 176.263 8. 95 Matt DiBenedetto 176.200 9. 13 Ty Dillon 176.131 10. 1 Kurt Busch 176.051 11. 21 Paul Menard 175.959 12. Toyota Wheel Force Drew Herring 175.810 13. 6 Ryan Newman 175.598 14. 18 Kyle Busch 175.524 15. 00 Landon Cassill 172.999 16. 51 Cody Ware 172.557 17. Ford Wheel Force David Ragan 172.381

RELATED: See pics from Thursday

THURSDAY: AFTERNOON SESSION

Position Number Driver Speed (mph)

1. 43 Bubba Wallace 178.253 2. 3 Austin Dillon 178.024 3. 1 Kurt Busch 177.795 4. 18 Kyle Busch 177.784 5. 2 Brad Keselowski 177.678 6. Toyota Wheel Force Drew Herring 177.299 7. 14 Clint Bowyer 177.101 8. 21 Paul Menard 177.096 9. 47 Ryan Preece 177.055 10. 13 Ty Dillon 177.032 11. 6 Ryan Newman 176.927 12. 48 Jimmie Johnson 176.540 13. 95 Matt DiBenedetto 176.448 14. Chevrolet Wheel Force Ross Chastain 175.342 15. 51 Cody Ware 175.330 16. 00 Landon Cassill 173.907 17. Ford Wheel Force David Ragan 173.171

FRIDAY SESSION