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Bookies and team ratings

Another one from old time I just remembered is Man United v. Legia Warsaw for the europa cup.
United beat Legia in Warsaw by 3-0.
The return leg at Old Trafford was attended by Margaret Thatcher and Lech Walesa.
Could United go all out to thrash the Poles ? That ended in a 1-1 draw.
Show me the data instead of all this "from memory" then i'll see if there is any significance to it. Other than that i only entered this thread to show you a mathematical way of "updating" odds/probabilities which you still don't get and going down the wrong road with this "compound probability" thing - i don't care much about your theory other than you have given me around 13-14 samples and football is not my bag - it's Horse Racing where i'm used to working with samples of 5k to 100+k.
Offski now but if you ever decide to build a model for horse racing based on "compound probability" let me know and i'll book your action all day long.
 
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Resource management or not, recently there was an Old Firm game (Rangers v Celtic) and with the title wrapped up Celtic fielded basically a reserve, fringe player team. Celtic having had the upper hand against the Gers all season lost 3-0 - you try telling the many 1000's of Celtic fans that paid good money to watch what was an embarrassment of a game about "resource management" and you would have been in the Glasgow Royal Infirmary within the hour getting stitched up and a few broken bones reset.

I know about these things.
When I was seven years old I listened to the radio - my dad was not taking me to the matches.
There was a paritcularly famous commentator who was doing the broadcasts.
Then one day a distant cousin of my mother's visited us. Her husband was a high court judge and during the conversation she revealed that the commentator was the judge's brother and an ardent supporters of Panathinaikos FC - our deadly rival.
Then eventually my dad took me to a match and at the end we walked out by crossing the pitch for some reason.
So I pass infront of the said commentator and he was bent on the floor collecting his equipment.
So I give him a kick in the butt.
 
I know about these things.
When I was seven years old I listened to the radio - my dad was not taking me to the matches.
There was a paritcularly famous commentator who was doing the broadcasts.
Then one day a distant cousin of my mother's visited us. Her husband was a high court judge and during the conversation she revealed that the commentator was the judge's brother and an ardent supporters of Panathinaikos FC - our deadly rival.
Then eventually my dad took me to a match and at the end we walked out by crossing the pitch for some reason.
So I pass infront of the said commentator and he was bent on the floor collecting his equipment.
So I give him a kick in the butt.
So your a football thug as well then - disgraceful - poor wee commentator going about his business not minding a soul and your booting his arse because of his allegiance to a daft football team. Backstabbed him as well as he was not even facing you.
This O'Jays Classic is for you :D

 
So your a football thug as well then - disgraceful - poor wee commentator going about his business not minding a soul and your booting his arse because of his allegiance to a daft football team. Backstabbed him as well as he was not even facing you.
This O'Jays Classic is for you :D

I pity that.
The man was a true scholar.
Nowadays they speak mountain language.
 
Absolutely loving this thread. Learnt a huge amount from it.

ARAZI91 ARAZI91 on the basis there is no such thing as a stupid question, can you humour me...

I assume the syndicates are betting in sufficient volume (did you say 40% of the volume in some football markets?) to move the odds around, whether that is on a public exchange or in a private Asian market or wherever. Therefore, are they:

a) either manipulating the market up and down (or at least taking advantage of market movements), making high volumes of tiny profits from arbitraging between a *lot* of back and lay bets, or

b) making money by being smarter than everyone else in the market (Joe Punter, owners, trainers etc.) and hoovering up the other 60% of the market volume by placing small numbers of very high $$$ bets & being correct more often than everyone else, or

c) doing something else?

The bit I don't really get is if they are the smartest guys in the room and have better predictions than anyone else, then there isn't any value bet, i.e. if they spot some value and pile in, they effectively kill the value before they can get a fraction of their bet on.

Thanks in advance.
 
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Absolutely loving this thread. Learnt a huge amount from it.

ARAZI91 ARAZI91 on the basis there is no such thing as a stupid question, can you humour me...

I assume the syndicates are betting in sufficient volume (did you say 40% of the volume in some football markets?) to move the odds around, whether that is on a public exchange or in a private Asian market or wherever. Therefore, are they:

a) either manipulating the market up and down (or at least taking advantage of market movements), making high volumes of tiny profits from arbitraging between a *lot* of back and lay bets, or

b) making money by being smarter than everyone else in the market (Joe Punter, owners, trainers etc.) and hoovering up the other 60% of the market volume by placing small numbers of very high $$$ bets & being correct more often than everyone else, or

c) doing something else?

The bit I don't really get is if they are the smartest guys in the room and have better predictions than anyone else, then there isn't any value bet, i.e. if they spot some value and pile in, they effectively kill the value before they can get a fraction of their bet on.

Thanks in advance.

I don't know what he 's going to say but re. football the type of Chinese connection I 'm aware of is with fixed matches only.
Somehow the Chinese bookies are supposed to be accepting the money knowingly and they are then burning it upstairs.
But where does it end ?
Fu Man Chu ?
And is Fu Man Chu an ultimate sucker ?
Since I know my Christopher Lee I never quite understood.
However in Greece we had two notorious cases some twelve years ago and the "organization Platini" also became involved.
One was Makis Psomiadis the gold merchant who is dead now.
The other was Achilleas Beos who has somehow managed to extricate himself from all this and he is now the mayor of the city of Volos.

Of course a big bet will always change the market.
In football I have n't seen big changes, maybe a 2.00 will become 1.80 - something like that.
When this happens it does speak in favour of the 1.80 result but it's not a guarantee.
I knew somebody who operated a 090 telephone line with the daily drifts. That must have been some time around 2003-2004 and maybe he is still doing it or made it into web service - I don't follow.
Did n't really work. Not a scam but did n't really work well.

Horses and syndicates may be quite a different story but we are talking about football.
I believe there may be some quite savvy fellows around but set the book on fire, no. I don't believe.
Always excepting if they fix, like the big Croatian gang of 2011.
 
Absolutely loving this thread. Learnt a huge amount from it.

ARAZI91 ARAZI91 on the basis there is no such thing as a stupid question, can you humour me...

I assume the syndicates are betting in sufficient volume (did you say 40% of the volume in some football markets?) to move the odds around, whether that is on a public exchange or in a private Asian market or wherever. Therefore, are they:

a) either manipulating the market up and down (or at least taking advantage of market movements), making high volumes of tiny profits from arbitraging between a *lot* of back and lay bets, or

b) making money by being smarter than everyone else in the market (Joe Punter, owners, trainers etc.) and hoovering up the other 60% of the market volume by placing small numbers of very high $$$ bets & being correct more often than everyone else, or

c) doing something else?

The bit I don't really get is if they are the smartest guys in the room and have better predictions than anyone else, then there isn't any value bet, i.e. if they spot some value and pile in, they effectively kill the value before they can get a fraction of their bet on.

Thanks in advance.
First of all your confusing these groups or consortiums with the type of betting we are now used to in the UK.
The five main football syndicates probably haven't placed a football bet within a UK market since they started - Bloom who is chairman of Brighton started StarLizard (his data and research HQ off the back of poker winnings and Asian Hcap football betting profits - Harry Findlay was a shareholder in StarLizard for a while but the two had a fallout but Findlay saw the potential Asian Hcap betting had) - Benham worked for him but broke away with a 3mill payout (profitshare) and started Smartodds (another data and research HQ) and now owns Brentford - both use the "Moneyball" approach("value orientated" using data and analytics but to a more advanced level than what you saw in the film with Brad Pitt as Billy Beane of the Oakland A's). There is a third operation in the UK ,we shall call "Mr X" - he's slightly below Bloom and Benham's level but is a very paranoid Irish chap who pays a team to monitor the internet looking for mentions of his name. First thing you do when you obtain employment in one of these HQ's is sign a "non-disclosure" agreement basically telling you to never "spill the beans" on how they operate. There are also two very large groups based in Asia that operate in the very same way. Biggest one there is called "Chon" - They all have algorithms that estimate global betting volume and are probably by now calibrated very accurately so know how much money to place without affecting the odds . They bet with Asian bet brokers who take a small fee per x amount staked but because they have such good data and analytics most of their bets are on big margins , ie a generally available 5-4 shot when it should be 4-6 -in football that is a big difference so they can get seven figures down placed over 3-4 brokers in a matter of minutes. They analyse everything from how much attendances affect games relative to a league/club to individual referees historical data. They create their own custom metrics and numerate everything as if you can do that , then it can be measured, if it can be measured then it can be calibrated to it's maximum advantage so R & D is a big thing. Regarding your a), b) and c)'s they do all of that (as do the horse racing syndicates)
The 40% thing was to do with the current situation in US horse racing right now where rebates between 5 to 10% are available (they used to be higher if a syndicate could guarantee x amount of dollars per annum ) - for example when the Zeljko/Walsh team moved in on US horse racing in around 2010 and were eventually hounded out by some self righteous US Senators, mostly from the Deep South and surrounding areas (how dare these clever Aussies bet into our pools and take an average 12 million dollar profit per annum) - so in a 3 year period they cleared 36 million dollars - now this group is the largest in the world -if there is a strong Pari-Mutuel somewhere then Z and co will be in there like France right now where they are cleaning up - yes they have algorithms that can manipulate markets but they are not doing anything illegal there - all of this came out in a famous court case in Aus in 2014 where the topic was should "Pro-Punters" be taxed - people assume they win because of the rebates - the Z-man produced a 1640 page account of every bet made during that 3 year US stint and only 21% of gross profits were from rebates which means they were vastly +EV in the first place and always have been - if somebody is going to offer these teams rebates they are going to take them but that does not mean that they rely on them to win - so lets clear that myth up first. So back to the 40% thing , it's estimated that for every 10 dollar's staked in the US right now , 4 of those dollars are from "computer teams" - because the ADW's cannot process their batch bets fast enough , a horse could be 5-2(Pari-Mutuel) going in the gate and be 4-5 at the first bend - the syndicates may have it at 4-6 or 4-7 on their line.
They don't all use the same modelling techniques but "clean data" is a must have so they have groups checking times, call positions, etc. Another big factor in the States is "track takeout including brokerage" - Saratoga for example has a track take out on average of around 18.5% where as somewhere like Tampa Bay could be as much as 25%, Finger Lakes could be in the low 30%'s - that just means the syndicates have to be more selective and require a bigger advantage at the high take-out tracks than the lower ones.
As for the UK i have consulted for a couple of medium sized syndicates - one in Ireland who actually specialised in "shop-runs" - this was at least 7-8 years ago when there were plenty more shops and still plenty of Best Odds Guaranteed especially in Ireland - their modus operandi was "value betting" permed multis - now there are good multis and absolute trash multis, they honed in on the good multis and had a large team of "runners" - i provided a tissue for each days cards along with a notable amount of other knowledgeable people - i actually advised them on how to run each day's tissue (and they had all the tissue data backdated from when they started) through some open source software to score them on accuracy - very easy to do with something like mean squared error or mean squared deviation - after doing this they dropped a few of the odds compilers and started weighting the remaining ones , hence they had built a "Weighted Wisdom Of the Crowds" which was far more accurate but as the shops declined so did BOG and the business and they had no other option but to fold and shut up shop.
The other more recent one i have consulted for on a remote basis using Zoom and private servers are based in London and were quite large players in the sports markets such as Golf, Rugby, Cricket etc - their Golf Model built on simulation from Google Earth was spectacular and was their main earner. As a sideline they provided certain bookmaking chains with in-play Golf odds and also tried to build a Pinnacle type model as their odds were very accurate but these sidelines were soon dropped due to various reasons and they went back to what they were best at - exchange trading, they also have access to Asian based brokers. They moved into horse racing a couple of years ago and their head modeller admitted to me that they did not have a clue how to get it off the ground and up and running - fair to say they have been trading in that time on horse racing and are going great guns. Payment is based on profit-share.
I will say that most of the really large syndicates all used logistic regression as their model of choice (not compound probability!!!!) - this was due to the Benter/Woods effect where those two teams used that to win absolute fortunes but as these groups progressed they added Bayesian inference, Custom built algorithms etc- Benter moved on to Probit regression in the 90's which gave him a bigger edge than the other HK teams at the time and hired the best Chinese mathematicians - even Woods has admitted before he died that Benter is the greatest living advantage gambler ever. Both Zeljko and Walsh worked under Woods for a while before they realised they could do it on their own and Zeljko has probably surpassed Benter now as Walsh is an absolute probability animal but it all goes back to Benter and his rudimentary algorithms at first and also Woods idea of taking the card-counting "team" approach and applying it to horse racing - something he should have been given more credit for imo. As the syndicates have progressed so have their modelling techniques and data analysis - years ago they would recruit from forums - i have a friend who was contracted to do some work for Woods, an Australian chap in the field of creating time figures for HK , Japan , Kranji , Singapore etc all the places Woods and his team bet into - he got that gig through an Australian racing forum. Nowadays your more likely to see Harvard and Yale graduates in their tax-haven Headquarters and they go by the term "quants"
 
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First of all your confusing these groups or consortiums with the type of betting we are now used to in the UK.
The five main football syndicates probably haven't placed a football bet within a UK market since they started - Bloom who... ...and Yale graduates in their tax-haven Headquarters and they go by the term "quants"

You are incredibly generous with your time ARAZI91 ARAZI91 Your reply is very much appreciated. Through my job, I work with data analytics teams / data scientists (and know enough myself to be slightly dangerous). Every so often we trial software which tries to democratize ML. Talking to the vendors behind the curtain, they have a target rich sales environment in the UK with small syndicates (I'm guessing 2 -5 person outfits with seven figure capital behind them). One company in particular seemed to be quite successful.
 
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Btw most people who are aware of these teams and groups in horse racing credit Bill Benter as the first person to try "logistic regression" on horse racing - not true - Benter was actually obsessed with this academic paper pre Hong Kong
BT Cloud
written by Ruth Bolton and Randall Chapman - it predates Benter's paper by 7 years (published in 1986 whilst Benter's seminal paper was published in 1993)
Obviously comparing the two you can see how Benter progressed the methodology.
Benter was also influenced by a now very hard to find book written by Stephen Brecher called "Beating the Races with A Computer" (1980)
Benter got a lot of ideas of how to numerate factors/variables from this book as computers were still in their infancy at the time.
But even Ruth Bolton and Randall Chapman were not the first to apply "regression" to horse racing - that goes to Bill (William) Quirin in his Magnum Opus (for the era) , his book "Computer Discoveries in Thoroughbred Handicapping" which was published in 1979
Here's his chapter on "regression"
Screenshot 2023-06-14 03.55.24.png
Screenshot 2023-06-14 03.55.52.png
Screenshot 2023-06-14 03.56.17.png
Screenshot 2023-06-14 03.56.47.png
Screenshot 2023-06-14 03.57.11.png
Screenshot 2023-06-14 03.57.47.png

William Quirin should also be credited with being the first to apply "Chi^2" (Not Steve Tilley) to horse racing as well as it's counter cousin and better metric "Standard Error" as well as "Expected Wins" (used in A/E and through aggregated Field Size probabilities in Impact Values) as can be seen in these two pages from the same book

Screenshot 2023-06-14 04.06.35.png
Certainly a visionary ahead of his time within horse racing metrics and data analysis
At least Benter had the decency to acknowledge Quirin and the book as a source in his 1993 paper
along with Brecher's book and the Bolton & Chapman paper
Screenshot 2023-06-14 04.18.44.png
Screenshot 2023-06-14 08.35.12.png
See Andy Beyer gets a credit from Benter - Beyer went to HK for a week and met with Benter , up until that point he did not believe that horse racing could be "blackboxed" - after a day with Benter he soon changed his mind
 
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From the Brecher book he probably got the idea of "Normalised finishing Position"
Brecher used this formula
Screenshot 2023-06-14 07.39.41.png
Benter would have used something like this (which is really clever as the values are really "z-scores" converted to the relative fin.pos and field size.
Screenshot 2023-06-14 07.42.19.png
Even in his own paper he showed an example of the progression of factors/variables - this one related to "distance preference" Benters factor is called DP6A

Screenshot 2023-06-14 07.50.32.png

Also heard from an ex-Benter employee that each numerical factor/variable went to 5 decimal places - why the need for that - well the factor could be an aggregated factor or cumulative and sometimes there would be "ties" within horses within the same factor with 4 or less decimal places, so he went to five so there would be no ties or horses with the same value.
 
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From the Brecher book he probably got the idea of "Normalised finishing Position"
Brecher used this formula
View attachment 135121
Benter would have used something like this (which is really clever as the values are really "z-scores" converted to the relative fin.pos and field size.
View attachment 135123
Even in his own paper he showed an example of the progression of factors/variables - this one related to "distance preference" Benters factor is called DP6A

View attachment 135124

Also heard from an ex-Benter employee that each numerical factor/variable went to 5 decimal places - why the need for that - well the factor could be an aggregated factor or cumulative and sometimes there would be "ties" within horses within the same factor with 4 or less decimal places, so he went to five so there would be no ties or horses with the same value.
This is excellent stuff. Hope you don't mind but I downloaded your entire BT Cloud library :cool: I had some of the papers already, but most not. Reassuringly I already do some of what is described in your last couple of posts. This is just in a limited, simplistic way to filter out the bulk of the field and leave me with some "probables" from which I then make a more subjective selection.

cosmicsports cosmicsports apologies if I'm sidetracking your thread
 
You are incredibly generous with your time ARAZI91 ARAZI91 Your reply is very much appreciated. Through my job, I work with data analytics teams / data scientists (and know enough myself to be slightly dangerous). Every so often we trial software which tries to democratize ML. Talking to the vendors behind the curtain, they have a target rich sales environment in the UK with small syndicates (I'm guessing 2 -5 person outfits with seven figure capital behind them). One company in particular seemed to be quite successful.
Thanks mate, i like the quote - (and know enough myself to be slightly dangerous). :)
One of my hero's from the financials world is the great James Simons - read his book last year in two days when recovering from major knee surgery. Ed Thorpe is another - whilst on the subject of Thorpe all of these teams use some form of the Kelly Criterion and so did Thorpe and Simons,especially during his "Medallion Fund" period. Simons is a mathematical genius, a prodigy at 12 years old, a code breaker for the NSA, has led some life- again if you managed to get your foot in the door of his company Renaissance Technologies you straight away signed a "non disclosure agreement " - all hush hush.
Thorpe is another, made card-counting public with a book called "Beat The Dealer" basically giving away his own edge, everything he turned his hand to he was successful.

Both books are here
BT Cloud Thorpe - A Man For All Markets - (epub)
BT Cloud Simons - The Man Who Solved The Markets (Pdf)
 
This is excellent stuff. Hope you don't mind but I downloaded your entire BT Cloud library :cool: I had some of the papers already, but most not. Reassuringly I already do some of what is described in your last couple of posts. This is just in a limited, simplistic way to filter out the bulk of the field and leave me with some "probables" from which I then make a more subjective selection.

cosmicsports cosmicsports apologies if I'm sidetracking your thread
That link what i put up is only a fraction of what i have in the "archives"
 
Bolton and Chapman who wrote the paper that obsessed Benter eventually wrote a follow up called "Still Searching For Positive Returns At The Track" with more variables and a bigger sample size
BT Cloud
 
Ok, just landed on the thread.

I have used the ELO website before, in conjunction with the SofaScore one, yes I recommend both used together.
Football Club Elo Ratings
Football Live Score - Sofascore

In recent seasons SSc have been adding the XG in-play stats along with the assists information. Along with the players ratings, the combination of this data, by team, is important/vital when setting up for a game.

My team Leeds are good example, of when the ratings are combined, it was obvious relegation was about to occur even though the odds available were generous, maybe expecting a dramatic escape. The BTTS score market was where the low lying fruit was. Leeds were able to score a goal, but concede many more. It was easier to see as I follow them closely, the hidden info that basic stats can't always show, lack of self confidence.

Add;
Too many manager changes - It take time for players to adapt to a new manager, positions/formations.
Defence was not the new Defence - Conceding goals is an important metric. Goal Difference will look after itself when not conceding. Give me a team nicking a 1-0 everytime.
Background shenanigans - Takeovers, Internal sackings, Crowd disquiet. Spurs/Chelsea/Liverpool all suffered, Man Utd somehow got through it. Leeds didn't
Players injuries - All teams suffer at some time, some more than others. Another metric that gets overlooked.

That's just one team. Each one needs to be dealt with systematically and ratings given, converted to a tissue, then value assessed. Invariably if it's value in the match odds market, other markets will follow.
 
You know you don't have to go that far tbh in football you use Baysean and probability it works wonders how bookmakers make huge mistakes in pricing up markets in advance.

I stopped the 6th of June as change in seasons this is my wrap sheet for may what can really be achieved without to much work the only thing is on my third bet 365 account after that this is dust.
 

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