Greening Up in Play DOUBLED MY LIABILITY!?!

A place to discuss anything.
Tanden
Posts: 43
Joined: Wed Mar 05, 2014 12:07 am

Hi The Fish

I get where you're coming from.

I just wanted to make sure people realised that your situation was different from the OP.

And that the current green up feature does work as intended but isn't appropriate in the scenario you described.

This doesn't mean it is wrong or should be changed.

As you have stated, what may well be useful is an additional button to perform the calculations you have said were possible - I currently use my own spreadsheet to do this, sometimes working across both exchanges if one of them goes down so I do know where you're coming from.
Tanden
Posts: 43
Joined: Wed Mar 05, 2014 12:07 am

Hi Crazyskier

You stated "The idea of green-up is to guarantee a profit OR minimise a loss, not COST YOU MORE, regardless of outcome!"

I don't believe that having an "idea" of how green-up should work serves us - what is important is to understand how the current feature does work and to use it when appropriate.

Obviously, if your opinion is that it doesn't work as intended then it is important to point that out as we all want useful, bug free software.

However, the current green up does exactly what it is intended to do - it closes all open trades at current prices.

It is supposed to do this and it is an essential feature of the software. It is exactly what we want it to do in many scenarios. Altering it would affect those scenarios.

However, in some scenarios it is not always appropriate and will result in a larger loss than if left alone.

This is usually when dutching has taken place and in these cases you should simply not use the green up feature.

I will admit that there is a case for disabling the green up button if the software can see that the resulting P&L would be worse than the current worst liability.

However, I hope you understand that that would not have helped you in the scenario you described.

-----------------------------------------------------------------------------------------------

You also stated "You're also wrong that other software does this too - none of the many I've tried, or Betfair's own cash-out in play EVER INCREASE YOUR LOSS LIABILITY - EVER. It's BA that has this peculiar problem."

We will have to agree to disagree on this point. I have accidentally greened up twice during an in-play delay on other software quite a few times although I did it on a single runner directly on the ladder. The worst part was I could see what was going to happen after I pressed it a second time and couldn't do anything!

But it is important to understand which scenario we are discussing.

In the screenshot that The Fish posted all other software and Betfair's cash out would give exactly the same result as Betangel.

It is simply the mathematical outcome of closing all open trades at current prices.

If you do this by hand you will get the same answer.

As stated above, it may be useful for the software to disable the green up in these situations but, again, that wouldn't have helped in your case.

It is really important for you to see that in your original post the green up feature had no way of knowing that it would worsen your situation because the green up bets that you had already submitted hadn't hit the market because of the in-play delay - so when you pressed a second time the green up feature made its calculations based on the same position as before.

But there is a possible enhancement that could help in the situation you described which I have put at the end of this post.

-------------------------------------------------------------------------------------------------

What is certain is that the software absolutely must have an option that closes and greens (or reds) all open trades at the current prices.

This option exists - it is the current green up option.

As traders it is our responsibility to understand how the available features work and when they are suitable.

In the screenshot provided by The Fish the current green up option is not suitable - but that doesn't make it wrong or mean it should be altered.

The original post is a different scenario entirely and correct use of the existing green up feature in that scenario would not have resulted in a worsened situation.

Most contributors are speculating that the green up option was clicked several times before the first bets had cleared the in play delay - if this is the case then that doesn't mean the green up option is wrong or should be changed - we need it in its current form for many other scenarios.

To Crazyskier: I don't believe the current green up needs to change but I do believe that what may have helped in your situation and so may be a useful additional feature is for Betangel to detect when a green up command has been issued and there is an active in-play delay so that in these cases the software will disable further green up commands until the in-play delay has passed.

I don't even know if that is possible and would welcome Betangel's and other members' comments.
User avatar
Dallas
Posts: 22729
Joined: Sun Aug 09, 2015 10:57 pm
Location: Working From Home

The confusion comes from how people interperate the word "Green up" this is just a terminology and Green up does not mean guaranteed profit or even minimal loss
Forget the actual word "Green up" and think of it as "Hedge up" or "Create equal P/L across all selections".

The 'Hedging up' figure shows what your net position in the market would be if you chose to close all your open positions at that moment at the best current prices to achive a equal P/L on all selections.

Weather this improves your current position depends on what money is avalible on each selection and at what odds at that given moment, as money arrives and is taken out of the market this figure is always changing and recalculating but the desision on weather to take the amount shown is always down to you - Its just a option you have and is the same option offered by all other software vendors.

If I trade on the match odds on a football market and a goal is scored i know this will put me in a good profitable position but for a few seconds after the market has unsuspeded the only money avalible to "Hedge up" against is at rediculas odds and doing it now will result in a much larger equal loss then the position i was in before the goal - if i wait a few seconds till the market begins to reform and for money to apper at better odds on each selection i can then "Hedge up" for a decent profit.

Despite nothing actually being traded on any selection just money has now been offered in the market at better odds for me to hedge up against.
User avatar
Crazyskier
Posts: 1167
Joined: Sat Feb 06, 2016 6:36 pm

Tanden, thanks for taking the time to elaborate why you think that Fish's -£29 figure SHOULD become a -£40 figure and also how our issues and double clicking the green-up can adversely affect liability. Thanks also to Dallas for clarifying how green-up can mean lay liability equally across all selections or red-up, etc.

However... to refine this example given by Fish and propose a suggested fix I'd simply say this:

When greening/redding up the algorithm should SURELY just take the green figures and LAY THEM ONLY, whilst BACKING the current red ones? This IS INDEED WHAT BETFAIR does, and also the other programmes I've used but will not name here (as they get edited out anyway).

What BA is doing is NOT what you can do manually as Fish explains - he made the -£29 outcome reduce to -£23 on ALL selections, just by LAYING THE GREEN selection. This is both logical and should be how BA works ideally, regardless of dutching or the number of outcomes. You Tanden are absolutely incorrect to suggest that making a worst case scenario of a £29 loss result in a £40 loss is ever how BA SHOULD work correctly. It simply is NOT. And as I've stated many times Betfair's cash-in does the same, simply laying greens to spread the risk across all selections, NEVER increasing the risk amount - EVER.
Tanden
Posts: 43
Joined: Wed Mar 05, 2014 12:07 am

To Crazyskier

Firstly, I apologise for yet another long-winded post! I seem to be incapable of being concise.

Secondly, you stated in your last post...

"You Tanden are absolutely incorrect to suggest that making a worst case scenario of a £29 loss result in a £40 loss is ever how BA SHOULD work correctly."

But I did not state that BA should turn a £29 loss into a £40 loss.

I have stated that the current green-up function is correct for many scenarios and therefore needs to stay as it is. If you can see it would create a worse situation, as in the example given by The Fish, then don't press it.

For those specific scenarios I support the suggestion of having an additional green-up function which should work in a similar manner to how you have described in your last post but it is vital that it is in addition to the current green-up and does not replace it.

I have a spreadsheet which does these calculations so know that they are possible and I have duplicated The Fish's example and my spreadsheet achieved the equalised £23 loss that The Fish spoke of.

As far as other software being able to do this I am going to completely concede that point to you. I don't know of any but that is only because of a limit to my knowledge.

Nor am I very familiar with the workings of Betfair's cash out feature, so again I will concede that point also. Although I have seen many situations where I was better off greening-up via the software than using Betfair's cash out. So both have their value.

Getting back to your original post I am under the impression that you believe the current green-up function caused your liability to increase from £50 to about £98.

I still maintain that this is not true and that the reason your liability increased was because you fired multiple bets into the market whilst the in-play delay was effective - and other software does this too - I have made the same mistake myself using it.

Had you only pressed the button once then your liability would have reduced.

No matter what method of greening is used if you fire in multiple bets by mistake you are likely to end up in a worse situation.

Whilst in a previous post I suggested that there could be merit in having BA disable multiple green-ups I am not convinced that this is the best use of the development team's time when all a trader has to do is wait for the in-play delay before trying to green-up again.

So, to summarise, I totally agree with having an additional green-up function (which looks to lay the selections with higher P&Ls and/or back the selections with lower P&Ls) but you should also understand that this is an extremely risky way of equalising the P&Ls in a fast moving in-play market especially when there are selections with no bets matched.

And, ironically, it wouldn't have solved the situation described in your original post.

But what is it that you think the software should have done in your case?

You said you were dutching to a liability of £50 so perhaps you had a few runners showing an equal profit and several/many un-dutched runners showing that liability of £50.

There are only really two approaches to equalising the profits - either lay the few dutched runners (which is what the current green-up does) or back all of the others.

Which one gives the best result will depend on the current prices so you can't dismiss the current green-up function as wrong just because there are times when it isn't appropriate. It will often give the best result.

It is also much safer in certain cases because as each of the submitted bets gets matched the liability reduces so you aren't left with a larger liability if they are not all matched.

But, if you were to have the software take the second approach and back all of the un-dutched runners then as each of the submitted bets gets matched the liability on the remaining runners increases and will only decrease once every single bet is matched - in your example of the closing stages of a horse racing market this is extremely risky. What if you matched all but one of your new back bets and that last unmatched bet left you with a runner carrying all the increased liabilities and it went on to win?

This is why I support an additional green-up function whilst keeping the current one and keeping them as separate so that the trader can decide which to use depending on market conditions.
The fish
Posts: 7
Joined: Mon Jan 11, 2010 10:50 am

I believe Peter Webb monitors the forums - I think he made an earlier contribution to this one. Given the consensus that appears to have developed for additional or extended green-up capability I would be interested to hear his thoughts on whether he would support that being included in the development plan for Bet Angel. I would certainly value it and I suspect, given this discussion so far, that many others would too.
The fish
Posts: 7
Joined: Mon Jan 11, 2010 10:50 am

Am I wrong to think that the forums are monitored? Is there an alternative way of raising a request to enhance the Bet Angel product? Can anyone advise?
User avatar
Dallas
Posts: 22729
Joined: Sun Aug 09, 2015 10:57 pm
Location: Working From Home

The fish wrote:Am I wrong to think that the forums are monitored? Is there an alternative way of raising a request to enhance the Bet Angel product? Can anyone advise?
Yes the forum is monitored but with so many threads on so many different topics there is no guarantee any suggestions buried in these particular threads are seen and more importantly no one can add to them
There is a section especially for users to put suggestions forward which i posted the link to earlier in this thread but here it is again and this is monitored by the development team

viewforum.php?f=20
The fish
Posts: 7
Joined: Mon Jan 11, 2010 10:50 am

Thanks, Dallas.

I've put forward a suggestion for enhanced green-up as you propose, aligned with the consensus in this forum.

Here is the link, viewtopic.php?f=20&t=11470&p=97488&hili ... +up#p97488, for any who want to read it and vote in the survey that assesses demand.

Vote now to achieve green-up change!
User avatar
Crazyskier
Posts: 1167
Joined: Sat Feb 06, 2016 6:36 pm

The yes vote just says 'form invalid' so I seem unable to vote on that linked page.
BrianS
Posts: 32
Joined: Tue Jul 19, 2016 1:49 pm

I just had a disaster with this on a football match, it doubled my liability across win lose and my draw gave massive returns. I am very wary of this now.
It was unfortunate as I literally redded up before the goal, literally a second and I got caught both sides of the market.
User avatar
Crazyskier
Posts: 1167
Joined: Sat Feb 06, 2016 6:36 pm

BrianS wrote:I just had a disaster with this on a football match, it doubled my liability .
Indeed. This is why sadly I simply cannot use BA for in-play greening. Mr. Webb seems to think that his software uses the same formulae to other software providers, but not once in almost a year of daily play have I found that a green up EVER increased total event liability on the other products I use. This is an issue peculiar to BA I fear.
User avatar
Euler
Posts: 24816
Joined: Wed Nov 10, 2010 1:39 pm
Location: Bet Angel HQ

The formula is simple and replicated by other vendors. But I suspect it's not being used as intended. If somebody can post a log (as previously requested) the guys can have a look.
User avatar
jimibt
Posts: 3675
Joined: Mon Nov 30, 2015 6:42 pm
Location: Narnia

Euler wrote:The formula is simple and replicated by other vendors. But I suspect it's not being used as intended. If somebody can post a log (as previously requested) the guys can have a look.
i'll dig into my logs tmro -but i too find that BA seems to green out with many unexpected eventualities. I do of course appreciate that this could be related to unmatched bets etc, etc, but it does seem to be a counter intuitive exercise and one that i often dread (especially in play). I sometimes (many times!!) even just resort to using the inbuilt betfair *cash out* function, as this never has any wrinkles, for all it's other failings.

anyway, sorry to be the poop at the party -but me too :(
User avatar
Dallas
Posts: 22729
Joined: Sun Aug 09, 2015 10:57 pm
Location: Working From Home

In BrianS’s case from his earlier comments his situation came about simply be clicking the green up button several times in quick succession immediately after a goal was scored and while the market was still re-forming. A combination of this and the Betfair in-play delay will of subsequently caused more than one green up bet to be matched and at unfavourable odds which then required more green up attempts as the market started to settle.
Post Reply

Return to “General discussion”