The 2020 Desert Diamond Casino West Valley 200 was a NASCAR Xfinity Series race held on November 7, 2020. It was contested over 200 laps on the 1-mile (1.6 km) oval. It was the thirty-third race and final race of the 2020 NASCAR Xfinity Series season. Team Penske driver Austin Cindric collected his sixth win of the season, and clinched the Xfinity Series championship.