What is dls method in cricket?

The "DLS method" in cricket refers to the Duckworth-Lewis-Stern method, a mathematical formula used to adjust the target score for the team batting second in a limited-overs cricket match affected by weather interruptions. The method was developed by statisticians Frank Duckworth and Tony Lewis and later refined with input from Professor Steven Stern.

The primary purpose of the Duckworth-Lewis-Stern (DLS) method is to provide a fair and equitable way to revise target scores in rain-affected matches, ensuring that both teams have a reasonable opportunity to win, despite the interruptions caused by adverse weather conditions.

Key points about the DLS method:

1. Baseline Score: The method starts with a baseline score, considering the number of overs initially allocated to each team and the resources available to them at the point of the interruption.
2. Target Adjustment: If the team batting second experiences a weather interruption, the target is adjusted based on the revised resources available to them. This adjustment considers the number of overs remaining, wickets in hand, and the scoring patterns in the innings.
3. Resource Percentage: The DLS method uses a concept called the "resource percentage" to quantify the team's situation. It takes into account the number of overs faced and the number of wickets lost compared to a notional "full quota" innings.
4. Par Score: The adjusted target is often referred to as the "par score." It represents the target score that a team should aim to achieve given the interrupted conditions. The team batting second is required to exceed the par score to win.

The DLS method is widely used in limited-overs formats, such as One Day Internationals (ODIs) and Twenty20 (T20) matches, where time constraints do not allow for the completion of a full match in the event of weather disruptions. The International Cricket Council (ICC) introduced the DLS method as a successor to the original Duckworth-Lewis method to enhance its accuracy and fairness in resetting target scores in rain-affected matches.