2019 O'Reilly Auto Parts 300

The 2019 O'Reilly Auto Parts 300 is a NASCAR Xfinity Series race held on November 2, 2019, at Texas Motor Speedway in Fort Worth, Texas. Contested over 200 laps on the 1.5 mi asphalt speedway, it was the 31st race of the 2019 NASCAR Xfinity Series season, fifth race of the Playoffs, and the second race of the Round of 8.

Track
Texas Motor Speedway is a speedway located in the northernmost portion of the U.S. city of Fort Worth, Texas – the portion located in Denton County, Texas. The track measures 1.5 mi around and is banked 24 degrees in the turns, and is of the oval design, where the front straightaway juts outward slightly. The track layout is similar to Atlanta Motor Speedway and Charlotte Motor Speedway (formerly Lowe's Motor Speedway). The track is owned by Speedway Motorsports, Inc., the same company that owns Atlanta and Charlotte Motor Speedways, as well as the short-track Bristol Motor Speedway.

First practice
Tyler Reddick was the fastest in the first practice session with a time of 28.801 seconds and a speed of 187.493 mph.

Final practice
Ross Chastain was the fastest in the final practice session with a time of 28.733 seconds and a speed of 187.937 mph.

Qualifying
Tyler Reddick scored the pole for the race with a time of 28.316 seconds and a speed of 190.705 mph.

Qualifying results
 .  – Playoffs driver

Summary
Tyler Reddick began on pole, but Christopher Bell took the lead on lap 6. Bell dominated in the first half, winning both stages.

When the final stage began, Austin Cindric grabbed the lead and led until Chase Briscoe had a flat right rear tire and made contact with the wall, bringing out a caution on lap 129. Reddick briefly got the lead but lost it to Chastain, who took and kept the lead on lap 144.

On lap 151, Noah Gragson tried to squeeze between Harrison Burton and Jeb Burton. He got tapped by Harrison and wrecked his car after spinning through the grass for his first DNF of 2019. The race was briefly red-flagged.

Chastain continued to lead on the restart, but Reddick hit the inside wall and brought out a late caution. Briscoe was also struggling as his right front tire disintegrated with 25 laps remaining, but NASCAR didn’t throw a caution. This forced Briscoe to ultimately finish 22nd.

Bell regained the lead on the lap 170 restart and he never looked back. He ultimately took the win, leading 101 laps and finishing ahead of Chastain by 5 seconds. Bell also secured a spot in the Championship race at Homestead-Miami Speedway. After the race, Briscoe, Michael Annett, Cindric, and Gragson were below the playoffs cutoff point.

Stage Results
Stage One Laps: 45

Stage Two Laps: 45

Final Stage Results
Stage Three Laps: 110

 .  – Driver advanced to the next round of the playoffs.

 .  – Playoffs driver