The DS method in cricket refers to a mathematical formulation used to calculate targets for the team batting second in a limited-overs cricket match interrupted by adverse conditions such as rain. More accurately known as the DLS method (Duckworth-Lewis-Stern method), it aims to set fair targets based on available resources.
Understanding the DLS Method
The Duckworth-Lewis-Stern (DLS) method adjusts the target score in limited overs cricket matches when there are interruptions, most commonly due to weather. The core principle is to account for changes in resources available to each team.
How it Works
The DLS method calculates how many runs teams should score if the resources available to both sides were equal.
- Resource Calculation: The method considers the remaining overs and wickets as "resources."
- Target Adjustment: The target is adjusted based on the percentage of resources available to each team.
DLS Formula
The formula to calculate a target can be expressed simply as:
Team 2's par score = Team 1's score x (Team 2's resources/Team 1's resources)
This target score ensures the team batting second has a fair chance, given the interruptions and changes in game conditions.
Example of DLS in Action
Imagine Team 1 scores 250 runs in 50 overs. Then, during Team 2's innings, play is stopped due to rain, and they only have 40 overs to bat, with no wickets lost. DLS calculates the percentage of resources available for both teams (overs and wickets). If Team 2's resources are 80% compared to Team 1's 100%, the adjusted target could be 200 (250 x 80%/100%).
