Author Topic: lay price equals back price  (Read 2710 times)

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lay price equals back price
« on: Fri, 05 April, 2013, 13:25 »
Hi,
can anyone tell me how often this happens? I see this for the first time.

Thanks,
mkas

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Re: lay price equals back price
« Reply #1 on: Fri, 05 April, 2013, 17:02 »
It is a glitch in the calculation of cross-matching prices. The cross-matching is a way to generate virtual prices out of the offers of the opposite type, i.e. back prices made of lay offers and vice versa. BetFair does that in certain markets, such as tennis and football.

Unfortunately the algorithm of doing that is not 100% clear, we used all the documentation we could find, but still there are some cases when these errors happen, although quite rare.

If you want to see the prices without cross-matching, you can turn off the setting "Display prices exactly as they are on the BetFair website" in "Monitoring Options".
Always try your triggers in Test Mode before switching to real money!

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Re: lay price equals back price
« Reply #2 on: Fri, 05 April, 2013, 17:28 »
Hi Oxa,
Thank you for your explanation. I assumed something like that. Are you sure that this error will not occur when I turn off the setting "Display prices exactly as they are on the BetFair website"? It lasted several hours so I also checked the BetFair website and prices were displayed correctly there.

mkas

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Re: lay price equals back price
« Reply #3 on: Fri, 05 April, 2013, 17:43 »
Hi Oxa,
Maybe I understand  :). When I turn on the setting "Display prices exactly as they are on the BetFair website" the MFP tries to simulate the cross-matching. Am I right?

mkas

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Re: lay price equals back price
« Reply #4 on: Fri, 05 April, 2013, 17:48 »
Maybe I understand  :). When I turn on the setting "Display prices exactly as they are on the BetFair website" the MFP tries to simulate the cross-matching. Am I right?

Yes, you are quite right. BetFair does not (for some reason) provide the actual cross-matching prices through the API, so we have to compute them ourselves.
Always try your triggers in Test Mode before switching to real money!

You can get a faster response from us if you contact us via FaceBook Messenger.

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Re: lay price equals back price
« Reply #5 on: Fri, 05 April, 2013, 18:13 »
Sorry for my perhaps amateur suggestion but is it possible to add the relevant condition in your algorithm to avoid this error in some future releases of MFP? Of course it is not urgent because I can check such rare situation by my triggers ...

mkas

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Re: lay price equals back price
« Reply #6 on: Fri, 05 April, 2013, 19:26 »
Sorry for my perhaps amateur suggestion but is it possible to add the relevant condition in your algorithm to avoid this error in some future releases of MFP? Of course it is not urgent because I can check such rare situation by my triggers ...

Every time we get an error report of this kind we try to improve the code for cross-matching, so it slowly gets better. Although still not perfect.
I will take your report into account as well and look into what might cause this situation.
Always try your triggers in Test Mode before switching to real money!

You can get a faster response from us if you contact us via FaceBook Messenger.

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