Strange bot

[98lewisj]

I was trying to close out a position I had open on the winners market for the US open. Watch this clip.

http://youtu.be/dKYpNOI_FI0?list=UU_hnT ... hmItH9FSzw

As soon as I click to close the trade by laying at 3.8 where there is obviously money available, the Back money disappears. Take out my lay bet and it returns.

At first I just thought Its a bot but then thought how can you have money in the market at the offer price that will not get matched? The strangest thing is on the Betfair site I closed out a second later and took the money that didn't want to be matched.

Any one shed any light on this??

[PeterLe]

That's weird isn't it? I must admit Ive never had that problem before?

[98lewisj]

I layed a £10 at 3.8 just before this vid and it was matched, tried to close the £220 odd out again and it didn't want to know.

[LinusP]

Surely that is just betangel xm in action with the actual xm bot turned off?

[steven1976]

Hi Linus or anyone else,
Do you have a link to explain how the BA xm action works? I read before about turning it on and off but never read up on it.
Thanks
Steve

[Euler]

To put it simply, say somebody has offered to back at 2.00 in a market, with virtual bets on a lay bet will also appear at 2.00. But if you went to take that it doesn't exist of course so it vanishes.

[Euler]

If you have virtual bets on a malformed, i.e. not fully formed market, you just end up with junk on your screen. But on the old API Betfair didn't support virtual pricing or a clean way of knowing when it was on or not. So we simply gave people the opportunity to select it manually.

[steven1976]

When you say "virtual bets on", do you mean xm on/off or people see demo mode bets?

Sometimes simple to some, is rocket science to us mortals!
That's really confused me! Don't take a lot though:lol:

I think what your saying is he's using practice mode?

[Euler]

That's OK, it's easy for me to assume too much, so that's my issue.

This should help: -

http://www.betangel.com/user-guide/display.html

[steven1976]

So if he had laid up at 6s he would be quids in as there would be no backers.

Interesting that the api didn't use to know if it was a virtual bet or not. Are you referring to an old api prior to current api in use, or prior to the launch of NG?

[user_mak]

Does anybody knows why Betfair switches the XM calculation on and off?

[LinusP]

Non runners and liquidity I believe, if it worked during the morning horse racing markets it could end up badly exposed if runners started being removed.