NASCAR Cup Series Practice at Las Vegas Motor Speedway
Ty Gibbs led the practice with a speed of 181.733mph (29.714s), completing 36 laps.
William Byron, the fastest playoff driver, showed the best long-run speed, with his fastest overall lap at 181.172mph. He was also fastest in the 5, 10, 15, 20, 25, and 30-lap averages.
- Chase Elliott (P) was third fastest at 180.953mph
- Denny Hamlin (P) was fourth at 180.741mph
- Bubba Wallace was fifth at 180.560mph
- Tyler Reddick was sixth at 180.475mph
- Chase Briscoe (P) was seventh at 180.385mph
- Ross Chastain was eighth at 180.288mph
Author's summary: Ty Gibbs leads NASCAR practice.