Minimum stake and price combinations

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Minimum stake and price combinations

Postby faris » Sun Jul 12, 2020 4:03 am

I want to lay bet less than 2 pounds
stake at the home and a way correct
score market
faris
 
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Re: Minimum stake and price combinations

Postby faris » Sun Jul 12, 2020 7:44 am

Hi Gavin I want to place a bet of a stake less than 2 pounds on correct score 2 home and 2 away market, I tried to place a lay bet of a stake say 0.75 pound but the bet did not go through , I get a note saying
(Failed to place bet. ERROR: INVALID_PROFIT_RATIO), but I am able to place the 0.75 pound stake on the match odds and the the correct score market, can you tell me what I have to change to get the bet through. Thanks
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Re: Minimum stake and price combinations

Postby Gavin » Mon Jul 13, 2020 12:35 am

Betfair have implemented a new policy to prevent users submitting very small bets, to prevent abuse of the way the exchange rounds amounts.

Please see the attached list of permitted and blocked combinations of prices and odds.

If you try to send a bet that Betfair blocks, the software will display the Betfair error message: INVALID_PROFIT_RATIO.

Kind regards,

Gavin
You do not have the required permissions to view the files attached to this post.
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Re: Minimum stake and price combinations

Postby faris » Mon Jul 13, 2020 1:20 am

Hi Gavin,
I am not able toto open the attachement. would you please send it in a differant form .
Regards
faris
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Re: Minimum stake and price combinations

Postby Gavin » Mon Jul 13, 2020 1:20 pm

The explanation given by Betfair:
The effect of that release will be that if customers attempt to place a bet (including a bet used a size-up edit or price change) or cancel a bet down to a remaining size, such that it returns 20% less or 25% more [1] than it ‘ought’ to, that bet will fail with an INVALID_PROFIT_RATIO error returned to API customers – (customers attempting such on the Betfair website or mobile app will receive a generic error).

For example – a 13p @ 1.06 back bet is ‘unfair’ as it ‘ought’ to win 0.78p, but actually - due to rounding - wins 1p, a 28% uplift.

So attempting to:

Increase the size of a £2.00 bet @ 1.06 to £2.13 (which creates a new 13p bet @ 1.06)
Cancel £1.83 of a £2.00 bet @ 1.06 (to leave a 13p remainder @ 1.06)
Price-editing a 13p @ 1000 bet to 13p @ 1.06 (which cancels the bet @ 1000 and creates a new one @ 1.06)


Will all fail with the error above.
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Re: Minimum stake and price combinations

Postby Gavin » Mon Jul 13, 2020 1:23 pm

faris wrote:Hi Gavin,
I am not able toto open the attachement. would you please send it in a differant form .
Regards
faris

Hi Faris,
I have now made it available as a PDF file too, added to the original message above.
Kind regards,
Gavin
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Re: Minimum stake and price combinations

Postby faris » Mon Jul 13, 2020 5:22 pm

Thanks Gavin
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