Practice #1 : Phoenix Raceway
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- Phoenix Raceway
- NASCAR Cup Series Championship
- Busch Light Pole Award Pole Winner: William Byron
- Age: 25
- Team : No. 24 - Axalta Chevrolet
- Owner: Hendrick Motorsports
- Crew Chief: Rudy Fugle
- William Byron won the Busch Light Pole Award for the NASCAR Cup Series Championship race with a lap of 27.15 seconds, 132.597 mph.
- This is his 12th pole in 216 NASCAR Cup Series races.
- This is his fourth pole and 23rd top-10 start in 2023.
- This is his first pole in 12 races at Phoenix Raceway.
- Martin Truex Jr. (second) posted his 17th top-10 start of 2023 and his 18th in 36 races at Phoenix Raceway.
- Kevin Harvick (third) posted his 21st top-10 start at Phoenix Raceway. It is his 13th in 36 races this season.
- Ty Gibbs (11th) was the fastest qualifying rookie.
- Drivers Entered: 36
- Laps Scheduled: 312
- Margin of Victory: 01.230 Seconds
- Time of Race: 2 Hours 52 Minutes 1 Seconds
- Average Speed: 108.827
- Cautions: 4 for 27 laps
- Lead Changes: 18
- Green Flag Passes: 2,201 (7.7 passes per green flag lap)
