2021 Quaker State 400

Atlanta Motor Speedway, the track where the race was held.

Atlanta Motor Speedway (formerly Atlanta International Raceway) is a track in Hampton, Georgia, 20 miles (32 km) south of Atlanta. It is a 1.54-mile (2.48 km) quad-oval track with a seating capacity of 111,000. It opened in 1960 as a 1.5-mile (2.4 km) standard oval. In 1994, 46 condominiums were built over the northeastern side of the track. In 1997, to standardize the track with Speedway Motorsports' other two 1.5-mile (2.4 km) ovals, the entire track was almost completely rebuilt. The frontstretch and backstretch were swapped, and the configuration of the track was changed from oval to quad-oval. The project made the track one of the fastest on the NASCAR circuit.

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

Stage One Laps: 80

Stage Two Laps: 80

Stage Three Laps: 100

• Lead changes: 10 among 7 different drivers
• Cautions/Laps: 4 for 21
• Red flags: 1 for 19 minutes and 4 seconds
• Time of race: 2 hours, 50 minutes and 8 seconds
• Average speed: 147.207 miles per hour (236.907 km/h)

NBC Sports covered the race on the television side. Rick Allen, Jeff Burton, Steve Letarte and 2004 Atlanta 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. Rutledge Wood handled the features from the track.

The race was broadcast on radio by the Performance Racing Network and simulcast on Sirius XM NASCAR Radio. Doug Rice and Mark Garrow called the race from the booth when the field raced down the front stretch. Rob Albright called the race from atop a billboard outside of turn 2 when the field raced through turns 1 and 2 & Brad Gillie called the race from a billboard outside of turn 3 when the field raced through turns 3 and 4. On pit road, PRN was manned by Alan Cavanna, Brett McMillan and Doug Turnbull.