2021 Xfinity 500

The 2021 Xfinity 500 was a NASCAR Cup Seriesrace held on October 31, 2021, at Martinsville Speedway in Ridgeway, Virginia. Contested over 501 laps—extended from 500 laps due to an overtime finish, on the 0.526-mile (0.847-kilometre) short track, it was the 35th race of the 2021 NASCAR Cup Series season, the ninth race of the Playoffs, and final race of the Round of 8. Alex Bowman moved Denny Hamlin during the closing laps to earn his fourth win in 2021, as well as his sixth overall.