IR horses Betfair skimming bot is back from today

[ddaann]

As you might remember, in March Betfair trialled IR skimming bot on few races, they said it would come back, but they kept quiet until yesterday.
Cross matching bot will be on today at Lingfield Park, and from tomorrow should be switched on on all races. In nutshell, you won't be seeing any under/over rounds (and if you had bot exploiting this you can kiss goodbye this strategy), prices will be much more "smooth", without crazy jumps (much less value bets), fewer races where 2 or more horses will be trading less then evens and so on. Will be watching with interest how market will look in these new conditions.

[GaryRussell]

Here is a video demonstrating BA's ability to calculate the cross matching virtual odds. The liquidity created by cross matching is highlighted in yellow.
The video is of the 1250 race at Lingfield today.
Lingfield 12:50
An updated Beta version will be released when Betfair confirm they are going ahead with this.

[ddaann]

Thanks Gary, top service.

[GaryRussell]

Lingfield 13:20 cross matching video

[doris_day]

D'you know if there's an explanation of how this works on multi-runner markets ? I can easily understand its method when there are 2 runners but not when there are many. Any help appreciated....

[GaryRussell]

Betfair give an example of a soccer match odds market (3 selections) Here

[2020vision]

Hi

maybe this is a dumb question but when I watch the cross-matching videos
I notice that when the price flashes yellow it is sometimes just the amount
of money available and other times the whole price box turns yellow?

Is there any significance in this - just would like to know - Thanks.

All the best - Michael

[GaryRussell]

Hi

maybe this is a dumb question but when I watch the cross-matching videos
I notice that when the price flashes yellow it is sometimes just the amount
of money available and other times the whole price box turns yellow?

Is there any significance in this - just would like to know - Thanks.

All the best - Michael

When it's just the amount it means that cross matching cannot provide better odds, but it is making more money available at that price.

[doris_day]

Thanks Gary. Understood...

[doris_day]

Anyone notice any difference ?

[xraymitch]

Anyone notice any difference ?

No - other than Nautical Approach touching 1.01 and losing. OUCH

Ray

[doris_day]

Yes, I spotted that one too. I also didnt see much difference. Hopefully it'll encourage a bit more liquidity, depending on how they sell it to the great unwashed.....

[ddaann]

Well it is still (very) early days, but one of my more profitable bots was struggling today. Without revealing too much, it offers back/lay odds and then closes position (ultimately depending on IR punters taking "unvalue" bets). Today in Lingfield had lot of unmatched bets or where I had to close position at loss, as I said still early days, will see what happens tomorrow.

[xraymitch]

Well it is still (very) early days, but one of my more profitable bots was struggling today. Without revealing too much, it offers back/lay odds and then closes position (ultimately depending on IR punters taking "unvalue" bets). Today in Lingfield had lot of unmatched bets or where I had to close position at loss, as I said still early days, will see what happens tomorrow.

I for one am interested to know how you get on tomorrow as my bots are always being suckered into taking "unvalue" bets ( mainly because I don't have the VBA skills to put in place checks and balances).

Cheers,

Ray

[doris_day]

dej, yes I think any algo that depended on high volatility won't do quite as well because I suspect cross-matching will reduce the volatility to quite a degree. I may be wrong but that's my gut reaction.

Then again, it much depends on how you define 'value' and 'unvalue'. Its an interesting area and one that I've never been able to fathom because, like 'beauty', 'value' is really in the eye of the beholder (unless of course you are able to time travel into the future).