The 2021 Sparks 300 was a NASCAR Xfinity Series race held on October 2, 2021, at Talladega Superspeedway in Lincoln, Alabama. Contested over 107- shortened from 113 laps due to an overtime finish—laps on the 2.66 mi (4.28 km) asphalt superspeedway, it was the 28th race of the 2021 NASCAR Xfinity Series season, the second race of the Playoffs, and the second race of the Round of 12. After "The Big One" occurred late, Brandon Brown was determined as the leader at the time of caution. The race was then called due to darkness, leading to his first career Xfinity series victory.