2021 Xfinity 500

Martinsville Speedway, the track where the race was held.

The 2021 Xfinity 500 program cover.

Martinsville Speedway is an International Speedway Corporation-owned NASCAR stock car racing track located in Henry County, in Ridgeway, Virginia, just to the south of Martinsville. At 0.526 miles (0.847 km) in length, it is the shortest track in the NASCAR Cup Series. The track is also one of the first paved oval tracks in NASCAR, being built in 1947 by H. Clay Earles. It is also the only race track that has been on the NASCAR circuit from its beginning in 1948. Along with this, Martinsville is the only NASCAR oval track on the entire NASCAR track circuit to have asphalt surfaces on the straightaways, then concrete to cover the turns.

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

Stage One Laps: 130

Stage Two Laps: 130

Stage Three Laps: 240

• Lead changes: 15 among 7 different drivers
• Cautions/Laps: 15 for 91
• Red flags: 0
• Time of race: 3 hours, 42 minutes and 48 seconds
• Average speed: 70.968 miles per hour (114.212 km/h)

NBC Sports covered the race on the television side. Rick Allen, 1997 race winner Jeff Burton, Steve Letarte and 2014 race winner Dale Earnhardt Jr. called the race from the broadcast booth. Dave Burns, Parker Kligerman, Marty Snider and Dillon Welch handled the pit road duties from pit lane. Rutledge Wood handled the features from the track.

MRN covered the radio call for the race, which was also simulcast on Sirius XM NASCAR Radio. Alex Hayden, Jeff Striegle and 7 time Martinsville winner Rusty Wallace had the call for MRN when the field raced down the front straightaway. Dave Moody covered the action for MRN when the field raced down the backstraightway into turn 3. Steve Post and Kim Coon covered the action for MRN from pit lane.