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PHOTO: The farcical finish of the 1992 Cricket World Cup semi between South Africa and England led to the Duckworth-Lewis method. (YouTube)
Key points:
Tony Lewis, who helped create Duckworth-Lewis formula for rain-affected cricket games, dies at 78
Tony Lewis, co-inventor of the Duckworth-Lewis method for settling weather-affected cricket matches, has died aged 78.
Former university lecturer Lewis, together with mathematician Frank Duckworth, devised the formula that was first used in match between Zimbabwe and England in 1997 and adopted by the International Cricket Council (ICC) in 1999.
"It is with much sadness that the ECB has learned of the passing of Tony Lewis MBE. Our thoughts are with Tony's family," the England and Wales Cricket Board said on Twitter.
The ICC also expressed its "sadness" at the news.
How to create a fair run chase in weather-hit limited overs cricket matches had stumped authorities for years.
At the 1992 World Cup things came to a head in the semi-final when South Africa's target of 22 runs from 13 balls remaining was re-calculated to 22 runs off one ball after rain.
"I recall hearing [BBC commentator] Christopher Martin-Jenkins on radio saying, 'Surely someone, somewhere, could come up with something better,' and I realised that it was a mathematical problem that required a mathematical solution," Duckworth said in an interview in 2007.
The Duckworth-Lewis method is an algorithmic solution that calculates a new target for a batting team based on its 'resources', namely wickets and overs in hand.
Since 2014 the method has been known as the Duckworth-Lewis-Stern (DLS) method, after Australian professor Steven Stern became the custodian of the system, and made some tweaks to counter modern scoring rates, after the retirements of Duckworth and Lewis who were both awarded MBEs in 2010.
https://www.abc.net.au/news/2020-04-03/duckworth-lewis-co-inventor-tony-lewis-dies/12118812
PHOTO: The farcical finish of the 1992 Cricket World Cup semi between South Africa and England led to the Duckworth-Lewis method. (YouTube)
Key points:
- Tony Lewis and Frank Duckworth devised the Duckworth-Lewis formula to settle rain-affected cricket matches
- Prior to 1999, such matches were resolved using the average run-rate
- The new method, later known as Duckworth-Lewis-Stern, calculated a new target for chasing teams based on a formula accounting for wickets remaining and overs in hand
Tony Lewis, who helped create Duckworth-Lewis formula for rain-affected cricket games, dies at 78
Tony Lewis, co-inventor of the Duckworth-Lewis method for settling weather-affected cricket matches, has died aged 78.
Former university lecturer Lewis, together with mathematician Frank Duckworth, devised the formula that was first used in match between Zimbabwe and England in 1997 and adopted by the International Cricket Council (ICC) in 1999.
"It is with much sadness that the ECB has learned of the passing of Tony Lewis MBE. Our thoughts are with Tony's family," the England and Wales Cricket Board said on Twitter.
The ICC also expressed its "sadness" at the news.
How to create a fair run chase in weather-hit limited overs cricket matches had stumped authorities for years.
At the 1992 World Cup things came to a head in the semi-final when South Africa's target of 22 runs from 13 balls remaining was re-calculated to 22 runs off one ball after rain.
"I recall hearing [BBC commentator] Christopher Martin-Jenkins on radio saying, 'Surely someone, somewhere, could come up with something better,' and I realised that it was a mathematical problem that required a mathematical solution," Duckworth said in an interview in 2007.
The Duckworth-Lewis method is an algorithmic solution that calculates a new target for a batting team based on its 'resources', namely wickets and overs in hand.
Since 2014 the method has been known as the Duckworth-Lewis-Stern (DLS) method, after Australian professor Steven Stern became the custodian of the system, and made some tweaks to counter modern scoring rates, after the retirements of Duckworth and Lewis who were both awarded MBEs in 2010.
https://www.abc.net.au/news/2020-04-03/duckworth-lewis-co-inventor-tony-lewis-dies/12118812
