The 2018 Federated Auto Parts 400 was a Monster Energy NASCAR Cup Series race that was held on September 22, 2018, at Richmond Raceway in Richmond, Virginia. Contested over 400 laps on the .75-mile (1.21 km) D-shaped short track, it was the 28th race of the 2018 Monster Energy NASCAR Cup Series season, second race of the Playoffs and second race of the Round of 16.