2019 Desert Diamond Casino West Valley 200

The 2019 Desert Diamond Casino West Valley 200 is a NASCAR Xfinity Series race held on November 9, 2019, at ISM Raceway in Avondale, Arizona. Contested over 200 laps on the 1 mi oval, it was the 32nd race of the 2019 NASCAR Xfinity Series season, sixth race of the Playoffs, and the final race of the Round of 8.

Track
ISM Raceway is a 1-mile, low-banked tri-oval race track located in Avondale, Arizona, near Phoenix. The motorsport track opened in 1964 and currently hosts two NASCAR race weekends annually. ISM Raceway has also hosted the CART, IndyCar Series, USAC and the WeatherTech SportsCar Championship. The raceway is currently owned and operated by International Speedway Corporation.

First practice
Christopher Bell was the fastest in the first practice session with a time of 27.736 seconds and a speed of 129.795 mph.

Final practice
Christopher Bell was the fastest in the final practice session with a time of 27.661 seconds and a speed of 130.147 mph.

Qualifying
Christopher Bell scored the pole for the race with a time of 27.180 seconds and a speed of 132.450 mph.

Qualifying results
 .  – Playoffs driver

Summary
Christopher Bell started on pole and led for the first 48 laps. The first caution occurred when Michael Annett and Riley Herbst tangled. Bell lost the lead to Tyler Reddick for one lap, but quickly took it back and won Stage 1. Bell and Austin Cindric were tagged for speeding on pit road. Cole Custer and Justin Allgaier exchanged the lead afterwards. Bell also won Stage 2 after briefly taking the lead.

Bell lost his chance of winning the race after a spin on lap 117 caused him to go one lap down. However, Bell was already locked into the finale from his win at the previous week's race. Chase Briscoe took the lead on the restart, but lost it to Allgaier as Briscoe only took fuel on the last caution (he had hoped for another caution to occur). Allgaier held onto the lead, holding off a charging Custer to take the victory and advance to the final 4.

Reddick and Custer also made the championship 4 on points, eliminating Cindric, Briscoe, Annett, and Noah Gragson.

Stage Results
Stage One Laps: 60

Stage Two Laps: 60

Final Stage Results
Stage Three Laps: 80

 .  – Driver advanced to the Championship 4.

 .  – Driver was eliminated from the playoffs.