Practice #1 : Las Vegas Motor Speedway
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- Las Vegas Motor Speedway
- 22nd Annual Boyd Gaming 300
- Pole Winner: Christopher Bell
- Age: 23
- Team : No. 20 - Rheem-Smurfit Kappa Toyota
- Owner: Joe Gibbs Racing
- Crew Chief: Jason Ratcliff
- Christopher Bell won the Pole Award for the 22nd Annual Boyd Gaming 300 with a lap of 29.398 seconds, 183.686 mph.
- This is his third pole in 11 NASCAR Xfinity Series races.
- This is his second pole and second top-10 start in 2018.
- This is his first pole in one races at Las Vegas Motor Speedway.
- Kyle Larson (second) posted his second top-10 start of 2018 and his third in four races at Las Vegas Motor Speedway.
- Daniel Hemric (third) posted his second top-10 start at Las Vegas Motor Speedway. It is his third in three races this season.
- Christopher Bell (first) was the fastest qualifying rookie.
- Drivers Entered: 40 (2 drivers will not make the race)
- Laps Scheduled: 200
- Margin of Victory: 0.881 Seconds
- Time of Race: 2 Hours 16 Minutes 29 Seconds
- Average Speed: 131.884
- Cautions: 6 for 29 laps
- Lead Changes: 10
- Green Flag Passes: 1,068 (6.2 passes per green flag lap)
- Las Vegas Motor Speedway
- 22nd Annual Boyd Gaming 300
- Race Winner: Kyle Larson
- Age: 25
- Team : No. 42 - DC Solar Chevrolet
- Owner: Chip Ganassi Racing
- Crew Chief: Mike Shiplett
- Kyle Larson won the 22nd Annual Boyd Gaming 300, his ninth victory in 104 NASCAR Xfinity Series races.
- This is his first victory and first top-10 finish in 2018.
- This is his first victory and third top-10 finish in four races at Las Vegas Motor Speedway.
- Christopher Bell (second) posted his first top-10 finish in his first start at Las Vegas Motor Speedway. It is his second top-10 finish in 2018.
- Justin Allgaier (third) posted his seventh top-10 finish in eight races at Las Vegas Motor Speedway.
- Christopher Bell (second) was the highest finishing rookie.
- Tyler Reddick leads the point standings by 0 points over Elliott Sadler.
