The 2021 NASCAR Cup Series Championship Race was a NASCAR Cup Series race held on November 7, 2021 at Phoenix Raceway in Avondale, Arizona. Contested over 312 laps on the one mile (1.6 km) oval, it was the 36th and final race of the 2021 NASCAR Cup Series season, and was also the last race for the Generation 6 car body, as it was replaced in 2022 by the Next Gen Car. Kyle Larson won the race and claimed his first NASCAR Cup Series Championship.