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Beefie
01 Apr 10 11:09
Joined:
Date Joined: 08 Feb 10
| Topic/replies: 140 | Blogger: Beefie's blog
I'm fairly new to all this. But I've been analysing some of my bets over the last month and comparing them with the BF historic data. In a number of instances I can show that the BF data is wrong, in that I have managed to get bets matched in-play below the IPMIN figure given by BF - on some occasions a lot below.

Has anybody else had any experience of BF data errors? And can we assume that the market is more volatile than this data suggests?
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Report beetle • April 1, 2010 12:16 PM BST
I think its more to do with accuracy than volatility. Not really in their interests to provide accurate data. Suggest you start collecting your own.
Report Beefie • April 1, 2010 12:31 PM BST
Thanks Beetle

My point about volatility is this - analysing the BF data shows in most of the instances I've looked at, over time the market is pretty efficient, e.g. there are the number of sub 3.00s, 2.00s, 1.5s etc that you would statistically expect. However, if the lows IP are less than stated then that changes all of that. The market would not be as efficient as it first appears.
Report Ghetto Joe • April 1, 2010 1:57 PM BST
The betfair data only displays amounts matched to a certain volume, think it's about £100 so a match of any less wouldn't show up
Report Beefie • April 1, 2010 2:19 PM BST
Thanks GJ - very helpful
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