TONI LEWIS

Tony Lewis, one of the men behind the Duckworth-Lewis-Stern method used in weather-affected limited overs cricket matches, has died aged 78.




Duckworth-Lewis-Stern System:

  1. The Duckworth–Lewis (D/L) method is a mathematical formula used to calculate the target score for the team batting second in a limited overs cricket match interrupted by weather (e.g. Rain) or other circumstances.

  2. Nomenclature: The D/L method was devised by two English statisticians, Frank Duckworth and Tony Lewis. After their retirements, Professor Steven Stern became the custodian of the method. In 2014, it was renamed the Duckworth–Lewis–Stern method (or DLS method).

  3. History: It was first used in international cricket in 1997 and was formally adopted by the ICC in 1999.

  4. Working: Each team in a limited-overs match has two resources available with which to score runs (overs to play and wickets remaining). The target is revised proportionally in the combination of these two resources to set a statistically fair target for the second team's innings, which is the same difficulty as the original target. 

Source :All India Radio

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