2023 Cook Out 400

The 2023 Cook Out 400 was a NASCAR Cup Series race held on July 30, 2023, at Richmond Raceway in Richmond, Virginia. Contested over 400 laps on the .75-mile (1.21 km) D-shaped short track, it was the 22nd race of the 2023 NASCAR Cup Series season.

Richmond Raceway, the track where the race was held.

Richmond Raceway (RR), formerly known as Richmond International Raceway (RIR), is a 3/4-mile (1.2 km), D-shaped, asphalt race track located just outside Richmond, Virginia, in Henrico County. It hosts the NASCAR Cup Series, the NASCAR Xfinity Series, NASCAR Craftsman Truck Series and the IndyCar series. Known as "America's premier short track", it formerly hosted two USAC sprint car races.

• (R) denotes rookie driver.
• (i) denotes the driver ineligible for series driver points.

William Byron was the fastest in the practice session with a time of 23.057 seconds and a speed of 117.101 mph (188.456 km/h).

Tyler Reddick scored the pole for the race with a time 23.749 of and a speed of 113.689 mph (182.965 km/h).

Stage One Laps: 70

Stage Two Laps: 160

Stage Three Laps: 170

• Lead changes: 18 among 8 different drivers
• Cautions/Laps: 3 for 21 laps
• Red flags: 0
• Time of race: 3 hours, 2 minutes, and 13 seconds
• Average speed: 98.783 miles per hour (158.976 km/h)

USA covered the race on the television side. Rick Allen, Jeff Burton, Steve Letarte and three-time Richmond winner Dale Earnhardt Jr. called the race from the broadcast booth. Dave Burns, Marty Snider and Dillon Welch handled the pit road duties from pit lane.

The Motor Racing Network had the radio call for the race, which was also simulcast on Sirius XM NASCAR Radio. Alex Hayden, Jeff Striegle and Todd Gordon called the race from the broadcast booth for MRN when the field races through the front straightaway. Dave Moody called the race from a platform when the field races down the backstraightaway. Jacklyn Drake, Kim Coon and Winston Kelley called the action for MRN from pit lane.