New Posts For Thread: Cross-Matchinghttps://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matchingCan anyone help me with the formula for cross matching on the footy please?I understand the formula is 1/(1-1/x) as there is only one possible outcome but how do I calculate x?In betfair's example the best lay prices are 2.00 for Newcastle, 3.00 forPerfect! Exactly how I understand it now and I've got my code displaying everything as on website - thanks again for your help!https://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478291957#478291957Perfect! Exactly how I understand it now and I've got my code displaying everything as on website - thanks again for your help!Thu, 16 Dec 2010 15:44:41 -0600Yes that's correct, the remaining £70 @ 3 (£150-£80) on chelsea is now used with the next available bet on newcastle £75 @ 2.5 to create another virtual bet of 3.75 for £50 on the draw.Again the minimum payout is set by the smallest amount£75 xhttps://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478280853#478280853Yes that's correct, the remaining £70 @ 3 (£150-£80) on chelsea is now used with the next available bet on newcastle £75 @ 2.5 to create another virtual bet of 3.75 for £50 on the draw.Again the minimum payout is set by the smallest amount£75 xThu, 16 Dec 2010 14:14:58 -0600Thanks for responding, I really appreciate it. The help on here is much better than on te API forum.Ah so we need to find the loewst amount matched on the other selcetions and times by the lay odds on this and then divide by our new back odds?So thehttps://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478269213#478269213Thanks for responding, I really appreciate it. The help on here is much better than on te API forum.Ah so we need to find the loewst amount matched on the other selcetions and times by the lay odds on this and then divide by our new back odds?So theThu, 16 Dec 2010 12:36:49 -0600Oops cocked that up a bit, This now gives us a maximum payout we can do of £240, we simply divide this by the odds so £240 divided by 6 = £40.Ignore the "So the overall payout is always going to be set by to lowest figure but because that's also shttps://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478256273#478256273Oops cocked that up a bit, This now gives us a maximum payout we can do of £240, we simply divide this by the odds so £240 divided by 6 = £40.Ignore the "So the overall payout is always going to be set by to lowest figure but because that's also sThu, 16 Dec 2010 10:41:53 -0600Think of it as if you were laying or making a balanced 100% bookWe have £120 at 2 which gives us a £240 payout£150 at 3 gives us a £450 payoutFor cross matching we need to balance those amounts equally or we'd have an unbalanced book so we need thttps://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478255829#478255829Think of it as if you were laying or making a balanced 100% bookWe have £120 at 2 which gives us a £240 payout£150 at 3 gives us a £450 payoutFor cross matching we need to balance those amounts equally or we'd have an unbalanced book so we need tThu, 16 Dec 2010 10:37:28 -0600ok so now I'm trying to get my head around the liability thing. In the betfair example there £120 quid at 2.0 to lay on newcastle, £150 at 3.0 to lay on chelsea and apparently this equates to £40 on our new best draw at 6.0?Can you help me understhttps://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478245949#478245949ok so now I'm trying to get my head around the liability thing. In the betfair example there £120 quid at 2.0 to lay on newcastle, £150 at 3.0 to lay on chelsea and apparently this equates to £40 on our new best draw at 6.0?Can you help me understThu, 16 Dec 2010 09:00:28 -0600Ah right I see, thanks again pal.https://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478162473#478162473Ah right I see, thanks again pal.Wed, 15 Dec 2010 14:30:47 -0600There probably wasn't enough money backing at 1.73 for the minimum stake to be displayed on site. Remember the liability is split equally over the other outcomes so for £2 to be displayed at 3.95 they'd need to be at least £4+ backing at 1.73. It'shttps://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478155993#478155993There probably wasn't enough money backing at 1.73 for the minimum stake to be displayed on site. Remember the liability is split equally over the other outcomes so for £2 to be displayed at 3.95 they'd need to be at least £4+ backing at 1.73. It'sWed, 15 Dec 2010 13:38:58 -0600Anyone know if there is no cross matching on the fa trophy in the football?The home and away lay prices are 1.73 and 5.9 butthe best price available on the draw is 3.85...Surely it should be 3.95?=1/(1-((1/1.73)+1/5.9)) = 3.96 i.e. rounded down to 3.https://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478150637#478150637Anyone know if there is no cross matching on the fa trophy in the football?The home and away lay prices are 1.73 and 5.9 butthe best price available on the draw is 3.85...Surely it should be 3.95?=1/(1-((1/1.73)+1/5.9)) = 3.96 i.e. rounded down to 3.Wed, 15 Dec 2010 12:54:40 -0600You are a star Baby Jesus - thanks very much!https://community.betfair.com/general_betting/go/thread/view/94082/26458093/cross-matching?post_id=478110001#478110001You are a star Baby Jesus - thanks very much!Wed, 15 Dec 2010 05:55:21 -0600