Kyle Larson posted the fastest lap in the first practice session for Sunday’s Pennzoil 400 at Las Vegas Motor Speedway.
Larson ran five laps at the 1.5-mile track with his third lap being the fastest at 190.658 mph for a time of 28.323. Kevin Harvick, last week’s winner at Atlanta, was second with Paul Menard, Kyle Busch and William Byron rounding out the top-five.
Weekend Schedule: 2018 LVMS weekend schedule
The full practice times and speeds for all 37 cars entered into the Monster Energy NASCAR Cup Series event at Las Vegas Motor Speedway can be found below.
MENCS Practice No. 1
| RaceRank | No | Driver | BestLapTime | BestSpeed |
| 1 | 42 | Kyle Larson | 28.323 | 190.658 |
| 2 | 4 | Kevin Harvick | 28.36 | 190.409 |
| 3 | 21 | Paul Menard | 28.366 | 190.369 |
| 4 | 18 | Kyle Busch | 28.37 | 190.342 |
| 5 | 24 | William Byron # | 28.379 | 190.282 |
| 6 | 20 | Erik Jones | 28.402 | 190.127 |
| 7 | 2 | Brad Keselowski | 28.505 | 189.44 |
| 8 | 12 | Ryan Blaney | 28.518 | 189.354 |
| 9 | 9 | Chase Elliott | 28.542 | 189.195 |
| 10 | 11 | Denny Hamlin | 28.547 | 189.162 |
| 11 | 78 | Martin Truex Jr. | 28.555 | 189.109 |
| 12 | 19 | Daniel Suarez | 28.577 | 188.963 |
| 13 | 1 | Jamie McMurray | 28.609 | 188.752 |
| 14 | 22 | Joey Logano | 28.617 | 188.699 |
| 15 | 14 | Clint Bowyer | 28.617 | 188.699 |
| 16 | 34 | Michael McDowell | 28.656 | 188.442 |
| 17 | 31 | Ryan Newman | 28.661 | 188.409 |
| 18 | 41 | Kurt Busch | 28.689 | 188.225 |
| 19 | 48 | Jimmie Johnson | 28.707 | 188.107 |
| 20 | 17 | Ricky Stenhouse Jr. | 28.721 | 188.016 |
| 21 | 88 | Alex Bowman | 28.793 | 187.546 |
| 22 | 38 | David Ragan | 28.83 | 187.305 |
| 23 | 37 | Chris Buescher | 28.84 | 187.24 |
| 24 | 10 | Aric Almirola | 28.842 | 187.227 |
| 25 | 95 | Kasey Kahne | 28.865 | 187.078 |
| 26 | 43 | Darrell Wallace Jr. # | 28.879 | 186.987 |
| 27 | 3 | Austin Dillon | 28.88 | 186.981 |
| 28 | 47 | AJ Allmendinger | 28.924 | 186.696 |
| 29 | 13 | Ty Dillon | 29.043 | 185.931 |
| 30 | 6 | Trevor Bayne | 29.054 | 185.861 |
| 31 | 51 | Cole Custer(i) | 29.184 | 185.033 |
| 32 | 32 | Matt DiBenedetto | 29.277 | 184.445 |
| 33 | 72 | Cole Whitt | 30.383 | 177.731 |
| 34 | 15 | Ross Chastain(i) | 30.606 | 176.436 |
| 35 | 23 | Gray Gaulding Jr. | 30.639 | 176.246 |
| 36 | 00 | Jeffrey Earnhardt | 30.906 | 174.723 |
| 37 | *55 | Joey Gase(i) | 32.102 | 168.214 |
