A Lap Knockout is a special variation of a circuit race. Lap knockouts were introduced in Need for Speed: Porsche Unleashed and are one of the main race modes ever since. Lap Knockout is seen in the iOS version of Need for Speed: Hot Pursuit (2010) although it is called "Eliminator."
A Lap Knockout race sees the last player to complete a lap eliminated from the event. This continues until a single player is left.