Please explain the Duckham/Lewis method.?

Question

On limited over matches the above occasionally comes in to play due to weather. How does it work and who were the two names that it is named after?

Answer 1

In the sport of cricket, the Duckworth-Lewis method (D/L method) is a mathematical way to calculate the target score for the team batting second in a one-day cricket match interrupted by weather or other circumstance. It is generally accepted to be a fair and accurate method of setting a target score, but as it attempts to predict what would have happened had the game come to its natural conclusion, it generates some controversy. It is not used in first-class cricket or Test matches.

The D/L method was devised by two English statisticians, Frank Duckworth and Tony Lewis. It was first used in international cricket in the second game of the 1996/7 Zimbabwe versus England One-Day International series, which Zimbabwe won by 7 runs.[1]

In 2001, it was formally adopted by the International Cricket Council as the standard method of calculating target scores in rain shortened one-day matches.

Previous methods used to achieve the same task included the use of run-rate ratios, the use of the score that the first team had achieved at the same point in their innings, and the use of targets derived by totalling the best scoring overs in the initial innings.

All of these older methods have flaws that are easily exploitable. Run-rate ratios do not account for how many wickets the team batting second have lost, but simply reflect how quickly they were scoring at the point the match was interrupted. Thus if a team felt a rain stoppage was likely, they could attempt to force the scoring rate without regard for the corresponding highly likely loss of wickets, skewing the comparison with the first team. The best-scoring overs method, used in the 1992 Cricket World Cup, left the South African cricket team requiring 21 runs from one ball – where the maximum score from any one ball is generally six runs – where prior to the brief rain interruption, they had a target of 22 from 13 balls, a target that although difficult, was at least attainable, leaving an exciting conclusion to the game in prospect, a finish destroyed when the team was given the same target off 12 fewer balls.[2] These flaws are not present, or at least effectively normalised, by the D/L method.

For more details such how the D/L Method is applied etc.,
please check the following link:

http://www.cricinfo.com/link_to_database/ABOUT_CRICKET/RAIN_RULES/DUCKWORTH_LEWIS_2001.html

Answer 2

The Duckworth-Lewis method was named after the two statisticians that created it (Frank Duckworth and Tony Lewis).

It's a complicated way of calculating what would have happened if the game had come to it's natural conclusion.

Rather than me try to explain it, check out the wikipedia page linked below. :)

Answer 3

It's "Duckworth/Lewis" for starters, and I'm not sure anyone really knows how to explain it....much like why Paris Hilton is a "celebrity"

Answer 4

i am also dont know