Has BetFair a little part of responsibility in the collapse of the Kieren Fallon trial (which cost British taxpayers ?950,000)?

No Gravatar

BetFair actively report betting that appears to them out of the ordinary. And, if any sport regulator has concerns, then BetFair provide them with additional information. BetFair, of course, has no say in whether a criminal offense has been committed, and no input into the prosecution (the Crown Prosecution Service).

In the Fallon case (an Irish jockey suspected of collusion with some bettors), the British police investigated the incidents. BetFair provided testimony. But the British justice decided that mister Fallon shouldn&#8217-t be convicted.

This week, the British police aired an internal report about why they lost the case &#8212-their fault, they write. I won&#8217-t analyze the full case on Midas Oracle, but I just want to touch 2 things:

  1. The Times (of London) says that &#8220-any prosecution based on race-reading, that is proving a motive by [analyzing] a jockey&#8217-s ride, is doomed because it is open to so many interpretations.&#8221-
  2. The British Police &#8220-had an inadequate understanding of the nature of online betting exchanges and the process of laying a horse to lose, the mechanism by which the defendants were alleged to have attempted to profit from fixed races.&#8221-

This second point was very clear during the trial, and the media reported, at the time, that BetFair didn&#8217-t do a good job in making sure that the Police would understand all the facts and mechanisms involved. Below are the media excerpts that make that case.

The Guardian:

[…] [Acting detective inspector Mark Manning] began his investigation by visiting the offices of Betfair, the company through which the bets involved in the case were made. He was told that Fallon&#8217-s fellow defendant Miles Rodgers had risked a total of ?2m, but Manning misunderstood and left with the belief that Rodgers had made a net profit of that amount. By the time the trial opened more than three years later, it had become clear that Rodgers had made a net loss of over ?250,000 on the races concerned. […]

The Guardian:

[…] In part, the fault is Betfair&#8217-s, for failing to ensure that police investigators understood the meaning of the complex evidence they provided, and for passing pages of irrelevant data to the Crown that provided one of many early embarrassments for the prosecution. […]

The senior detective in charge of the investigation, Mark Manning, had met [Betfair lawyer David O’Reilly] at Betfair&#8217-s offices earlier that year [in 2004]. Manning left with a fundamental misunderstandingthat Rodgers had made a net profit of ?2m from his betting activities, when in fact this was the total amount that had been risked. By the time the trial began, it had become clear that the accounts controlled by Rodgers had in fact made a net loss of more than ?250,000 on the 27 races investigated.

Betfair provided more than 300 pages of data in evidence, showing the betting activities of Rodgers&#8217- accounts on these 27 races. O&#8217-Reilly, the first witness called, claimed in court that this data showed how Rodgers would take bets on certain horses at much bigger odds than were being offered by anyone else. Under cross-examination, however, O&#8217-Reilly was led to the realisation that the Betfair data for eight of the 27 races included details of bets made after the race had started, at which point larger odds could be justified by mid-race developments. Observers were shocked that Betfair could have made such a blunder in handling its own data.

The father of one of the accused (and now cleared) jockey:

The man from Betfair admitted at the start of the trial he had misled police as to the amounts that had been gambled and then they brought in an expert witness from Australia [Ray Murrihy, Racing NSW’s chief steward] who doesn&#8217-t know how things work here [in the U.K.].

Daily Mail:

The case highlighted the difficulty of proving, forensically and legally, that a jockey has tried and succeeded in stopping a horse from winning.

BBC News:

[…] At the end of the day, serious questions will be asked of both City of London Police and the Crown Prosecution Service as to why they agreed to proceed with a case that was so flawed and had little chance of success.

BetFair Malta and Jadestone output yet another simplistic prediction game: TaiKai.

No Gravatar

BetFair TaiKai

Previous blog posts by Chris F. Masse:

  • IIF’s SIG on Prediction Markets
  • Science
  • Why did prediction markets do well in the pre-polling era, professor Strumpf?
  • Mozilla FireFox users, do you have trouble downloading academic papers (as PDF files) from SSRN?
  • “Impact Matrix. Used to collect and gauge the likelihood and business impact of various events in the very long term.”
  • Ends and Means of Prediction Markets — Tom W. Bell Edition
  • How to run enterprise prediction markets… legally

Reverse engineering of a nasty BetFair rumor that made rounds on Midas Oracle and elsewhere

No Gravatar


  1. The Sporting Exchange (BetFair-TradeFair) is a gaming company that operates on many countries.
  2. It would happen, occasionally, that one country&#8217-s laws would allow fixed-odds bookmakers &#8212-but not betting exchanges.
  3. BetFair would still want to operate in that country &#8211-as a bookmaker, not as a prediction exchange&#8211- to have its name out there &#8212-with the long-term goal of reverting it to a full exchange, once the laws will have been modified, later on, in the future.
  4. To do so, in the summer of 2007, BetFair began to hire people to provide prices and manage risk for that Internet sportsbook. That sportsbook has no connection whatsoever with the UK betting exchange.
  5. One un-hired job candidate told everyone who would listen that BetFair was preparing to do some hidden market-making on their betting exchange &#8212-hiring a &#8220-team of traders&#8221-.
  6. BetFair wouldn&#8217-t deny those allegations, out of fear of hinting its competitors.
  7. The sportbook, which was at the origin of that market-making rumor, is BetFair Italy &#8212-which has opened shop recently.