In-play data for extra bet

The sport of kings.
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Goobs
Posts: 66
Joined: Thu Jul 10, 2025 4:01 pm

HI,

When I back a horse, I also like to place an in-play bet at odds of 30 for £1, just as a little juicer, which has worked quite well. But this value was picked arbitrarily. Does anyone have an in-play database to see what an average winning horse might trade to in running?!

I would love to fine-tune this second bet, but I don't have the data to investigate....
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Goobs
Posts: 66
Joined: Thu Jul 10, 2025 4:01 pm

OK, no one wants to help with that one...

How would I start recording the in-play max of a selecti,on then to record the data myself?
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Dallas
Posts: 23628
Joined: Sun Aug 09, 2015 10:57 pm

The Betfair SP data includes the in-running hi/lo traded prices
https://promo.betfair.com/betfairsp/prices
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Goobs
Posts: 66
Joined: Thu Jul 10, 2025 4:01 pm

Thanks, Dallas but I'm not sure how useful that is for a retard like me. I don't have spare days to go through each one individually, and don't have the skills to process the data en masse.... :?:
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Goobs
Posts: 66
Joined: Thu Jul 10, 2025 4:01 pm

Ah maybe I can figure something out, I can get all the winning horses from this data, but some of it seems confusing, how can the IPMAX be much lower than the BSP on some runners...? some there starting at >4 and only have an ipmax of 1.3 something......?
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Goobs
Posts: 66
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anyone........?
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jamesedwards
Posts: 4594
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Goobs wrote: ↑
Tue Oct 14, 2025 5:34 pm
 anyone........?
Must be an error in the data.
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Goobs
Posts: 66
Joined: Thu Jul 10, 2025 4:01 pm

I've downloaded so many now, over 3 months' worth and they are all like!

Whats the point in publishing data that is so faulty? unless i'm not understanding something....?
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jamesedwards
Posts: 4594
Joined: Wed Nov 21, 2018 6:16 pm

Frustrating, but there's only 25 races in there that look anomalous, and out of 3 months of racing that's not a bad error rate.

You could easily enough exclude them from your data by removing races where the IPMAX is significantly lower than PPMIN.
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Bet Angel
Bet Angel
Bet Angel
Posts: 4035
Joined: Tue Apr 14, 2009 3:47 pm

Goobs wrote: ↑
Tue Oct 14, 2025 5:52 pm
 I've downloaded so many now, over 3 months' worth and they are all like!

Whats the point in publishing data that is so faulty? unless i'm not understanding something....?
Looking at betfair's data definition, IPMAX requires a bet with a minimum of £100 payout before it is included in the data set.
That doesn't explain all the data anomalies, but could explain the ones where the IPMAX is only slightly below the BSP.
Screenshot 2025-10-15 101525.png
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Goobs
Posts: 66
Joined: Thu Jul 10, 2025 4:01 pm

Yes, I did see that yesterday and concluded the same, IPMAX could be a lot higher, but if only £1 were matched it would be ignored... :roll:
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