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duckwoth and lewis are the two match refrees who first followed the method
The D/L method sets a revised target for the side batting second (Team 2) when overs have been lost by a suspension in play. The revision is not in proportion to the numbers of overs the two sides can receive but is in accordance with the run-scoring resources the two sides have at their disposal. These resources include both overs and wickets in combination.

• A table gives the resources remaining at any stage of an innings for any number of overs left and wickets lost. The resources are expressed in terms of the percentages of the resources of a full 50-over innings. This table may be different for different Team 1 innings and can be produced by the computer software available.

• If either innings is shortened after it has started then the balance of resources of the two sides is upset and a revised target needs to be set in accordance with the resources available to the two sides. To find the resources available for either innings, you use the table to find out the resources lost from that innings and subtract this from the resources with which the innings started. If the innings started with 50 overs to be received, the resources at the start of the innings are 100%. But if the innings is shortened before it starts, or if the match is of less than 50 overs per side, then the resources at the start are less than 100%.

• To find the resources lost from an innings due to an interruption:
(i) note the numbers of overs left and wickets lost at the start of the suspension; use the table to find the resources remaining
(ii) note the same at the resumption of play and from the table read off the resources now remaining
(iii) subtract (ii) from (i) to give the resources lost.

• To find the resources available subtract the resources lost from the resources that were available when the innings started.

• When a revised target has to be set, find the resources available for both sides and calculate the revised target as follows, always rounding down to a whole number.

• If Team 1's resources are denoted by R1 and Team 2's resources by R2, then
Team 2's revised target = Team 1's actual score x R2/R1, plus one run, rounded down as necessary. (One run less than the target gives a tie.)

2006-07-27 01:04:59 · answer #1 · answered by cutepraveen4u 2 · 2 0

The Duckworth and Lewis method was devised by two statisticians, Frank Duckworth and Tony Lewis in 1998, and has been adopted by the International Cricket Council as the standard method of calculating target scores in shortened one-day matches.

The essence of the D/L method is "resources". Each team is taken to have two "resources" to use to make as many runs as possible: the number of overs they have to receive; and the number of wickets they have in hand. At any point in any innings, a team's ability to score more runs depends on the combination of these two resources. Looking at historical scores, there is a very close correspondence between the availability of these resources and a team's final score, a correspondence which D/L exploits.

Using a published table which gives the percentage of these combined resources remaining for any number of overs (or, more accurately, balls) left and wickets lost, the target score can be adjusted up or down to reflect the loss of resources to one or both teams when a match is shortened one or more times. This percentage is then used to calculate a "par score" that is usually a fractional number of runs. If the second team passes the par score set by the first team then the second team is taken to have won the match; if the match ends when the second team has exactly met (but not passed) the par score (rounded down to the next integer) then the match is taken to be a tie.

Hope this information helps you.

2006-07-27 07:55:13 · answer #2 · answered by Sreek 2 · 0 0

The Duckworth and Luis Method is the way an ODI match is decided if it is rained out. If both teams have batted at one point, then the team which has the higher runs per over average are called the winners of the match.

2006-07-27 14:02:53 · answer #3 · answered by Anonymous · 0 0

The answer given by Streek is absolutely correct.

Its called the "Duckworth - Lewis" method and was devised by two English university statisticians in 1998.

Although quite complicated to understand, it almost always produces a fair target in a rain effected one-day match.

2006-07-27 14:25:24 · answer #4 · answered by Anonymous · 0 0

ITS A COMPLICATED METHOD TO FIND A RESULT IN ODI'S.

AS WE HAVE NO OTHER BETTER WAY CURRENTLY, WE STICK WITH IT TIME BEING.

ITS LEWIS.. NOT LUIS.

2006-07-27 12:47:12 · answer #5 · answered by A.R.RAJA 6 · 0 0

its a formula to work out how many overs etc. remain due to weather. usually day nighters and twenty-twenty matches

2006-07-27 07:55:11 · answer #6 · answered by Anonymous · 0 0

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