The Duckworth–Lewis–Stern method ( DLS) is a mathematical formulation designed to calculate the target score (number of runs needed to win) for the team batting second in a limited overs cricket match interrupted by weather or other circumstances. For the Irish pop group, see The Duckworth Lewis Method.Ī rain delay at The Oval, England Scoreboard at Trent Bridge indicating that bad light has stopped play. This article is about the cricketing term.