New Posts For Thread: Lay bets matched higher than requested pricehttps://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-priceRecently I've identified a few lay bets placed IR that have been matched above the requested price. I suspect something is wrong with BF's matching algorithms.Has anybody else experienced this?Momentarily over-round books are almost inevitable in any reasonable liquidity volatile in-running markets in which cross matching is switched off. No accumulation of over-round bots subject to the in-play delay can possibly achieve what Betfair's x-https://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541633157#541633157Momentarily over-round books are almost inevitable in any reasonable liquidity volatile in-running markets in which cross matching is switched off. No accumulation of over-round bots subject to the in-play delay can possibly achieve what Betfair's x-Sun, 28 Sep 2014 10:09:14 -0500Some of it also because of huge gaps in the market, for example G-Mc just matched at 1.10 while tie matched at 5.5.https://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541632401#541632401Some of it also because of huge gaps in the market, for example G-Mc just matched at 1.10 while tie matched at 5.5.Sun, 28 Sep 2014 09:16:15 -0500I'm regularly seeing momentary overbroke or underbroke books, one match in particular Steven Gallagher-Phil Mickelson, but also whenever an individual match takes a turn.https://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541632371#541632371I'm regularly seeing momentary overbroke or underbroke books, one match in particular Steven Gallagher-Phil Mickelson, but also whenever an individual match takes a turn.Sun, 28 Sep 2014 09:13:37 -0500Nothing appears to be broken in the Ryder Cup markets but cross matching is currently switched off in those markets. No cross matching algorithm prices are generated on the web interface. Virtual (cross matching) prices will continue to be displayedhttps://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541631981#541631981Nothing appears to be broken in the Ryder Cup markets but cross matching is currently switched off in those markets. No cross matching algorithm prices are generated on the web interface. Virtual (cross matching) prices will continue to be displayedSun, 28 Sep 2014 08:41:16 -0500Ryder Cup markets definitely broken for me - think it's something to do with crossmatching bot. If I don't ask for the exact price that is available I don't get matched even though there's better prices available.https://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541630137#541630137Ryder Cup markets definitely broken for me - think it's something to do with crossmatching bot. If I don't ask for the exact price that is available I don't get matched even though there's better prices available.Sun, 28 Sep 2014 06:24:37 -0500Here's an example of a single bet of £70.05 @ 2.22 matched in various portions in the following sequence:£2.00 @ 2.00£13.00 @ 1.8£34.05 @ 2.22£8.00 @ 2.22£13.00 @1.8I get how the first part of the bet can be matched at below 2.22. The bit I dohttps://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541617389#541617389Here's an example of a single bet of £70.05 @ 2.22 matched in various portions in the following sequence:£2.00 @ 2.00£13.00 @ 1.8£34.05 @ 2.22£8.00 @ 2.22£13.00 @1.8I get how the first part of the bet can be matched at below 2.22. The bit I doSat, 27 Sep 2014 07:03:59 -0500The golf markets matching algorithm is most definitely broken.https://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541617039#541617039The golf markets matching algorithm is most definitely broken.Sat, 27 Sep 2014 06:35:43 -0500This is all interesting. Something else I've spotted - some bets definitely take longer to match than others. So in experiments I can fire 2 bets in quick succession at the same price, and although the bet IDs are in the right sequence, they are rehttps://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541616929#541616929This is all interesting. Something else I've spotted - some bets definitely take longer to match than others. So in experiments I can fire 2 bets in quick succession at the same price, and although the bet IDs are in the right sequence, they are reSat, 27 Sep 2014 06:26:41 -0500What sort of stakes are we talking about? Technically I have just experienced this whilst setting up my Live Video 'freeview' bets for this afternoon's racing. Laid 3.55, backed back at 3.55 (not self-matched and bets placed in that order) and showhttps://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541614649#541614649What sort of stakes are we talking about? Technically I have just experienced this whilst setting up my Live Video 'freeview' bets for this afternoon's racing. Laid 3.55, backed back at 3.55 (not self-matched and bets placed in that order) and showSat, 27 Sep 2014 02:41:28 -0500I remember from quite a few years back there were bots here that were spoofing the markets. Through the old api they would send a bet request and a cancel request at the same time. If this was done quickly enough and often enough, the bets would aphttps://community.betfair.com/general_betting/go/thread/view/94082/30354947/lay-bets-matched-higher-than-requested-price?post_id=541614579#541614579I remember from quite a few years back there were bots here that were spoofing the markets. Through the old api they would send a bet request and a cancel request at the same time. If this was done quickly enough and often enough, the bets would apSat, 27 Sep 2014 02:29:09 -0500