New Posts For Thread: Green up formula, accounting for arbitrage and commissionhttps://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commissionI'm trying to create a formula that will green up on two selections, one being backed with a bookie and the other being layed on betfair @ 5% commission. I just can't get my head around it. Can anyone help please?A1=0.95 (commision rate)B2=Bookie OddsC2=betfair Lay priceD2=((b2-((c2-1)/$AS1+1)/((c2-1)/$AS1)*100If D2 is positive ,it a arbHope this help..https://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522683525#522683525A1=0.95 (commision rate)B2=Bookie OddsC2=betfair Lay priceD2=((b2-((c2-1)/$AS1+1)/((c2-1)/$AS1)*100If D2 is positive ,it a arbHope this help..Mon, 06 Aug 2012 09:43:33 -0500Hi Mr Magoo,Just a quastion. How can you find arbs Fixed Odds x Spostsbook? Do you find them manually or do you have any sofware to find them? Thanks!https://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522681123#522681123Hi Mr Magoo,Just a quastion. How can you find arbs Fixed Odds x Spostsbook? Do you find them manually or do you have any sofware to find them? Thanks!Mon, 06 Aug 2012 08:37:07 -0500Thanks, Donnie Brasco.Although I actually needed the formula in this example (I'm a programmer,) that is a very useful page :)https://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522675905#522675905Thanks, Donnie Brasco.Although I actually needed the formula in this example (I'm a programmer,) that is a very useful page :)Mon, 06 Aug 2012 05:31:58 -0500Hurrah !!!!And apologies. I wasn't taking off the commission on the lay. DOH !!Many, many thanks. That twisted my head and it appears it's much easier than I was convoluting it to be. It helps if I understand my own question!!https://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522675797#522675797Hurrah !!!!And apologies. I wasn't taking off the commission on the lay. DOH !!Many, many thanks. That twisted my head and it appears it's much easier than I was convoluting it to be. It helps if I understand my own question!!Mon, 06 Aug 2012 05:27:28 -0500Hi again, Mr MagooYour example works for c=0.05 in the respect that you have two green contenders, but they're not equal values, which is what I'm after but, to be fair, didn't specifically state.back £100 at 4.0 = 300 if win, -100 if loselay £163.https://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522675609#522675609Hi again, Mr MagooYour example works for c=0.05 in the respect that you have two green contenders, but they're not equal values, which is what I'm after but, to be fair, didn't specifically state.back £100 at 4.0 = 300 if win, -100 if loselay £163.Mon, 06 Aug 2012 05:19:00 -0500In answer to the OP question here is the link you need to an easy to use calculator.http://www.trickybet.net/lay-calculator-basicJust plug in your bets and commision rate.https://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522672685#522672685In answer to the OP question here is the link you need to an easy to use calculator.http://www.trickybet.net/lay-calculator-basicJust plug in your bets and commision rate.Mon, 06 Aug 2012 02:16:22 -0500Oh Magoo, you've done it again! If you happen to do this when the markets are perfectly formed and all movements have settled, then this would be correct.So... if the markets are perfectly formed and settled, taking the lays on Betfair will be profithttps://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522669083#522669083Oh Magoo, you've done it again! If you happen to do this when the markets are perfectly formed and all movements have settled, then this would be correct.So... if the markets are perfectly formed and settled, taking the lays on Betfair will be profitSun, 05 Aug 2012 20:42:20 -0500Anyway, here are some arbs for you that won't even need you to leave Betfair's site, thanks to their new 'fixed odds' service on the beta:Olympics 2012/Athletics/Men/400m Hurdles/Gold Medal WinnerLay David Greene at 14.5, back at fixed odds of 15.0Olhttps://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522663483#522663483Anyway, here are some arbs for you that won't even need you to leave Betfair's site, thanks to their new 'fixed odds' service on the beta:Olympics 2012/Athletics/Men/400m Hurdles/Gold Medal WinnerLay David Greene at 14.5, back at fixed odds of 15.0OlSun, 05 Aug 2012 17:50:07 -0500If you happen to do this when the markets are perfectly formed and all movements have settled, then this would be correct.So... if the markets are perfectly formed and settled, taking the lays on Betfair will be profitable...(let's gloss over how youhttps://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522663049#522663049If you happen to do this when the markets are perfectly formed and all movements have settled, then this would be correct.So... if the markets are perfectly formed and settled, taking the lays on Betfair will be profitable...(let's gloss over how youSun, 05 Aug 2012 17:37:47 -0500Cheers, Mr Magoo, but that only works if commission is 0. Any other value for c and if doesn't green equally :(In the example I gave, it works on my calculator with c = 0.05 for 5%?https://community.betfair.com/general_betting/go/thread/view/94082/29273877/green-up-formula-accounting-for-arbitrage-and-commission?post_id=522662403#522662403Cheers, Mr Magoo, but that only works if commission is 0. Any other value for c and if doesn't green equally :(In the example I gave, it works on my calculator with c = 0.05 for 5%?Sun, 05 Aug 2012 17:20:08 -0500