The 2021 Xfinity 500 was a NASCAR Cup Series race held on October 31, 2021, at Martinsville Speedway in Ridgeway, Virginia.

Alex Bowman moved Denny Hamlin during the closing laps to earn his fourth win in 2021, as well as his sixth overall.

This was the final round that it was scheduled, but NASCAR made a change at Bristol in March when the formula was used when rain cancelled qualifying.

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.