2019 Allied Steel Buildings 200

The 2019 Allied Steel Buildings 200 was a NASCAR Xfinity Series race held on May 4, 2019, at Dover International Speedway in Dover, Delaware. Contested over 200 laps on the 1-mile (1.6 km) concrete speedway, it was the 10th race of the 2019 NASCAR Xfinity Series season. This was the season's fourth and final Dash 4 Cash race.

Track
Dover International Speedway is an oval race track in Dover, Delaware, United States that has held at least two NASCAR races since it opened in 1969. In addition to NASCAR, the track also hosted USAC and the NTT IndyCar Series. The track features one layout, a 1 mi concrete oval, with 24° banking in the turns and 9° banking on the straights. The speedway is owned and operated by Dover Motorsports.

Dash 4 Cash
For the final Dash 4 Cash race, Tyler Reddick, Gray Gaulding, Christopher Bell, and Chase Briscoe had qualified for prize eligibility at the previous race.

First practice
Tyler Reddick was the fastest in the first practice session with a time of 23.089 seconds and a speed of 155.918 mph.

Final practice
Austin Cindric was the fastest in the final practice session with a time of 23.568 seconds and a speed of 152.749 mph.

Qualifying
Cole Custer scored the pole for the race with a time of 22.882 seconds and a speed of 157.329 mph.

Qualifying results
 .  – Eligible for Dash 4 Cash prize money

Summary
Cole Custer started on the pole and dominated the two stages, leading the first 156 laps. Kaz Grala spun after a bump by John Hunter Nemechek with 47 laps to go, causing a caution. Custer lost the race on pit road to Christopher Bell, and was unable to retake the lead due to dirty air. After restarting on the bottom lane, Custer was overtaken by Tyler Reddick and struggled to recover.

Riley Herbst spun and brought out the next caution. On the restart, Bell pulled away while Reddick and Justin Allgaier nearly wrecked battling for second place. The final caution occurred when Gray Gaulding spun out shortly afterwards, also collecting Vinnie Miller. Bell managed to pull away on the restart and held off Allgaier to win the race and Dash 4 Cash prize money.

Stage Results
Stage One Laps: 60

Stage Two Laps: 60

Final Stage Results
Stage Three Laps: 80

 .  – Won the Dash 4 Cash prize money