New Posts For Thread: Maths help please to create a 100% bookhttps://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-bookIf a football match has odds of 1.91 3.5 and 3.6 which equates to a 92% book what are the maths to increase the odds of all 3 selections pro rata of course to get to a 100% book.Your help would be appreciated!I still wonder why you need the answer to the opening question. GL ifyou get the figures youneed.https://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545457563#545457563I still wonder why you need the answer to the opening question. GL ifyou get the figures youneed.Thu, 09 Jul 2015 14:40:26 -0500:)i know what's bothering you.. but this is how it is. Bookies predict "true" (chances) odds.. for example: 1.11 (90%) vs 10.00 (10%), then they introduce margin (to make profit) of 5% and reduce both odds by that 5%. Getting 1.11/1.05=1.06 & 10/1.05https://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545425751#545425751:)i know what's bothering you.. but this is how it is. Bookies predict "true" (chances) odds.. for example: 1.11 (90%) vs 10.00 (10%), then they introduce margin (to make profit) of 5% and reduce both odds by that 5%. Getting 1.11/1.05=1.06 & 10/1.05Tue, 07 Jul 2015 09:56:08 -0500calmbefore, do you really need to be so precise?https://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545413785#545413785calmbefore, do you really need to be so precise?Mon, 06 Jul 2015 10:49:46 -0500* sorry, reduce by 2.68%https://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545411015#545411015* sorry, reduce by 2.68%Mon, 06 Jul 2015 08:03:39 -0500using the Murray match prices 8.4 (11.9% chance) and 1.07 (93.46%) = 105.36%reduce each % chance by around 2.78%prices are now 1.11 and 10.5 (90.09% and 9.52%)https://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545410985#545410985using the Murray match prices 8.4 (11.9% chance) and 1.07 (93.46%) = 105.36%reduce each % chance by around 2.78%prices are now 1.11 and 10.5 (90.09% and 9.52%)Mon, 06 Jul 2015 08:01:44 -0500Thanks to you both for your reply which works until you get a football match of 10 5 and 1.3Also tennis Murray today at Lads 8.5 and 1.07 95% book.Doing what you say gives 'true' odds of 8.95 and 1.12 - surely this can't be correct?Your comments woulhttps://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545408491#545408491Thanks to you both for your reply which works until you get a football match of 10 5 and 1.3Also tennis Murray today at Lads 8.5 and 1.07 95% book.Doing what you say gives 'true' odds of 8.95 and 1.12 - surely this can't be correct?Your comments woulMon, 06 Jul 2015 03:58:38 -0500.. just divide each one with 92% :)e.g. 1.91/0.92=2.076www.advancedbetcalc.com/Fair%20Coefficient.aspxhttps://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545405621#545405621.. just divide each one with 92% :)e.g. 1.91/0.92=2.076www.advancedbetcalc.com/Fair%20Coefficient.aspxSun, 05 Jul 2015 17:37:04 -0500Many thanks for that however that doesn't seem to work when you get a big odds on shot and a big outsider.For example a game where the prices are 10.0 5.0 and 1.3Using your formula I end up with prices of 10.69 5.35 and 1.39 which does indeed make ahttps://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545405261#545405261Many thanks for that however that doesn't seem to work when you get a big odds on shot and a big outsider.For example a game where the prices are 10.0 5.0 and 1.3Using your formula I end up with prices of 10.69 5.35 and 1.39 which does indeed make aSun, 05 Jul 2015 17:04:35 -0500To get the equivalent % for the Decimal Odds, you divide the Odds into 100....Therefore 100/1.91 = 52.36% 100/3.5 = 28.57% 100/3.6 = 27.78%Total Book = 108.71%If you wanted to make it a 100% Book then, Factor each % by 100/108.71Thttps://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545401091#545401091To get the equivalent % for the Decimal Odds, you divide the Odds into 100....Therefore 100/1.91 = 52.36% 100/3.5 = 28.57% 100/3.6 = 27.78%Total Book = 108.71%If you wanted to make it a 100% Book then, Factor each % by 100/108.71TSun, 05 Jul 2015 10:02:08 -0500If a football match has odds of 1.91 3.5 and 3.6 which equates to a 92% book what are the maths to increase the odds of all 3 selections pro rata of course to get to a 100% book.Your help would be appreciated!https://community.betfair.com/general_betting/go/thread/view/94082/30542579/maths-help-please-to-create-a-100-book?post_id=545400535#545400535If a football match has odds of 1.91 3.5 and 3.6 which equates to a 92% book what are the maths to increase the odds of all 3 selections pro rata of course to get to a 100% book.Your help would be appreciated!Sun, 05 Jul 2015 09:20:24 -0500