BA for BF - Price is out of allowable range

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EyePeaSea
Posts: 258
Joined: Sun Jun 12, 2011 11:18 am

Hi,

This might be a silly question - but I thought you could place a trade at any (within reason) odds. If it isn't matched, it isn't matched. But a few times today, I've been a bit slow in my bids and I've had the error 'Price is out of allowable range'. Is there a certain tolerance (e.g. +/- 50% of current odds??).

Thanks


Ian
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EyePeaSea
Posts: 258
Joined: Sun Jun 12, 2011 11:18 am

Ian,

Well... I'm not sure, but if I were to guess, I think I get this error from BA when there are no odds showing - completely blank cells (high/medium/lay).

If that's the case, then what harm does it do, if BF allows me to post that trade offer? Someone may take it up...

Ian
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LinusP
Posts: 1918
Joined: Mon Jul 02, 2012 10:45 pm

Betfair has its own price increments, that you have to use..

http://bdp.betfair.com/index.php?option ... id=59&id=6
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kelpie
Posts: 341
Joined: Sun Dec 30, 2012 12:40 am

Yes, I think you need to use the BF increments

The other thing of note with prices is for advance placements you can only order backs HIGHER than market and lays LOWER than market. If you want prices t'other way around you have to wait until the market catches up. Personally I think this is one of the exchange cons because they know this helps punters trade out of losing positions... ho hum, we can't have everything :(
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Euler
Posts: 26457
Joined: Wed Nov 10, 2010 1:39 pm

I'm pretty sure there is a spreadsheet or discussion somewhere here that shows how to look up exact odds values. I can't immediately find it though.
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kelpie
Posts: 341
Joined: Sun Dec 30, 2012 12:40 am

From To Increment Ticks per centile
1.01 2.00 1% 100
2.02 3.00 2% 50
3.05 4.00 5% 20
4.10 6.00 10% 10
6.20 10.00 20% 5
10.50 20.00 50% 2
21.00 30.00 100% 1
32.00 50.00 200% 0.5
55.00 100.00 500% 0.5
110.00 1000.00 1000% 0.1
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switesh
Posts: 527
Joined: Mon Jul 11, 2011 8:43 am

Hi EyePeaSea,
I've attached a spreadsheet that uses INDEX and MATCH excel functions to find the price on BF ladder.

You can enter the number of ticks to offset from current LTP, or enter 0 (zero) if you do not wish to offset, as shown in the attached image.

Let me know any specifics if that wasn't what you were looking for.
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EyePeaSea
Posts: 258
Joined: Sun Jun 12, 2011 11:18 am

Thanks LinusP, Kelpie, Euler and Switesh (thought I'd save everyone's bandwidth with just one thank-you post).

That's interesting and does explain what I'm seeing. I was getting very puzzled / annoyed with it. I'll have to see how to incorporate this check into my code.

Thanks again

Ian
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EyePeaSea
Posts: 258
Joined: Sun Jun 12, 2011 11:18 am

switesh wrote:Let me know any specifics if that wasn't what you were looking for.
Hi Switesh,
Thanks especially to you, for going to the effort of posting your sheet with annotations. This is a slight hill for me to climb. Unlike most of the traders on here, my systems (I'm on #5 and #6 at the moment) haven't had to deal with some of the subtleties of BF. When the odds at a given point in time go through my formula and come out with a big green tick (metaphorically speaking and no pun intended) then I make the trade. At 15-30 mins before the off, the odds never change between my system spotting an opportunity and making the trade. My latest system (#6) is far more time critical and running from the start (ish) to start+120 seconds, means that everything moves much quicker which I guess is why I'm only just seeing the problem now.

Time to get my head out of the code and learn a bit more about trading...

Thanks again


Ian
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