Those old enough to remember Prof Julies Sumner Miller would recall his famous quote, "Why is it so?"

How can a reputable Tote and Exchange publish a different winner of a race? Tatts was the right outcome. It can only make you wonder about the accuracy of Betfair historical data. A race from Saturday attached. Nice payout for those that Backed Double Event with Betfair, $288.

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Did you find this because they didn't pay? I never check that I have been paid out correctly, curious to know how often there is a mistake.

I,d say as rare a hens teeth Fred.

Bit of a worry, doesn't make for a lot of confidence in their historical data I would have thought

No, I was checking results of a system and when I came across the Betfair result, I thought, "there goes that system!". I just couldn't believe the result, although with the number of longshots getting up of late, maybe I could? Still in denial I checked another Betfair portal, still the same, then went to Tatts, Unibet and The Harness Association and found a different result.

Like where's the quality control? Remember the movie the "The Sting". Didn't they broadcast a false result, get the payout and shoot through? There's obviously some unhappy Betfair backers ~ layers and one or two very happy ones.

Surely they didnt settle based on that result? Anyone on the wrong side would have started kicking & screaming, at least I know I would have.

I checked my history and it turns out that I had a lay on Double Event, and they paid out correctly. The bad news is that I only had 7c matched. That 7c was left makes me suspect that an arber beat me to it.

That is why I think it's a bad idea to use ratings from a single source. Slipping in a bad rating and laying it on Betfair would be the perfect crime. Would be better to produce your own ratings using Ratings2Win.

Not sure I follow some of the replies here???
But this is not the first time Betfair has messed up the winner.
They constantly have non runners still in their data and prices that are impossible to be plausible.
Their PPWAP and MORNINGWAP prices are way out of whack, how can $1.00 have only been traded on an odds on favourite????
And then the PPWAP be odds of $1.00.

There are only two ways to get any semblence of accuracy.
1. Turnover money on each and every race for your own recording purposes.
2. Write code that captures the data you need.

Your eyes will boggle when you try and match it to their own published data

And this actually makes me wonder, how on earth can the bfsp calculations be accurate that you get.

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Just on the BFSP prices CP, I would caution anyone relying on the place market SP prices.

I haven't looked at BF's results data for sometime, but know from experience of betting on the places markets most days that the final SP price shown is always more than that which gets matched, at least it has been on the runners I back, & for that reason I usually avoid using SP on the place markets, usually much better off trying get matched prior to the jump.