Betfair has already undertaken to assist the International Cricket Council in a similar way.
Gerald Corbett, chairman of Betfair, advised shareholders to sit tight and take no action.
Six defendants including Mr Williams and Mr Rodgers deny conspiracy to defraud customers of Betfair.
Shares in Betfair, whose betting exchange allows gamblers to bet against each other, rose as much as 14%.
Mr Koch, a co-founder of LEK Consulting, holds a 6.5% stake in Betfair.
In a short statement, Betfair said it was focused on running the business.
Tiz a Minister, who ran last weekend at Betfair Hollywood Park, was not expected to make the trip from California.
Betfair, a betting exchange, has launched an application running the Yahoo!
The ATP is currently investigating a match in Poland in which online gambling site Betfair voided bets on a match involving the Russian because of irregular betting patterns.
Betfair's exchange processes more than seven million transactions a day.
The six defendants deny conspiring with others between December 2002 and September 2004 to defraud online betting exchange Betfair customers and other punters by plotting to fix 27 races.
Betfair, which allows clients to open accounts and bet online wherever they live, has similar arrangements with the Football Associationa, the Association of Tennis Professionals and the UK Jockey Club.
Among the bets traded on Betfair during Test matches are the result itself, who will win the toss and whether he will bat or bowl, and in which session the match will finish.
In Germany, where a ban on online gambling came into force last year, the state of North Rhine-Westphalia has ordered Betfair, a British firm (see article), to block access to its residents.
He was also found guilty of riding Three Ships at Wolverhampton on 21 January 2005 with the intention of not obtaining the best possible placing, in the knowledge that the horse was being laid to lose on Betfair.
BBC: SPORT | Other Sport... | Horse Racing | Jockeys get 18-month suspensions
He was also found guilty of riding Ever Cheerful at Lingfield on 30 December 2004 with the intention of not obtaining the best possible placing, in the knowledge that the horse was being laid to lose on betting exchange Betfair.
BBC: SPORT | Other Sport... | Horse Racing | Jockeys get 18-month suspensions
Betfair, an online-betting exchange based in London, has been called the eBay of sports betting (see article), and the vast majority of the websites that allow people to play poker and other games of chance or skill for real money are based in Europe.
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