ЧТО ТАКОЕ МУЛЬТИ СТАВКА В СТАВКАХ НА СПОРТ
Collectives on Stack Overflow. Learn more. Asked 6 years, 4 months ago. Modified 6 years, 4 months ago. Viewed times. However, when I try: from betfair. AccountFundsResponse, Improve this question. Liam Flynn Liam Flynn 1, 3 3 gold badges 16 16 silver badges 15 15 bronze badges. Add a comment. Active Oldest Votes.
Try to change endpoint. Improve this answer. Param Bhat Param Bhat 1 1 gold badge 6 6 silver badges 17 17 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. Formulating betting angles or "strategies" as some call them is quite a common pasttime for some.
These angles can range all the way from very simple to quite sophisticated, and could include things like:. Beyond the complexity of the actual concept what really seperates these angles is evidence. You might have heard TV personalities and betting ads suggest a certain strategy resembling one of the above are real-world predictive trends but they rarely are.
They are rarely derived from the right historical data or are concluded without the necessary statistical rigour. Most simply formulated their angles off intuition or observing a trend across a small sample of data. There are many users on betting exchanges who profit off these angles.
In fact, when most people talk about automated or sophisticated exchange betting they are often talking about automating these kind of betting angles, as opposed to betting ratings produced from a sophisticated bottom-up fundemental modelling. Once again this is another example of the uses of the Betfair historical stream data. To get cracking - as always - we need historical odds and the best place to get that is to self serve the historical stream files.
Which will include: Which will include:. Parsing and saving a dataset, using it to test some hypotheses which likely results in more questions that need to be examined by reparsing the stream files in a slightly different way. Your workflow will likely follow something like this diagram. Most of these were discussed in the previous backtest your ratings tutorial. Finally, after sourcing and downloading 12 months of stream files ask automation betfair.
However, a sneaky workaround is to use an unsuppoerted back-end endpoint, one which Betfair use for the Hub racing results page. Stiching these two functions together we can create a wrapper function that hits both endpoints for all the thoroughbred races in a given day and extract all the runner metadata and results.
Then to produce a historical slice of all races between two dates we could just loop over a set of dates and append each results set. The process I lay out is very similar if not identical but the implementation might be a bit trickier in each case and might take a little more programming skill to get up and running.
Looping back around to the context discussion in part 0. This is a technique you can use to group together variables in conceptually similar groups. For example, thoroughbred races are run over many different exact distances m, m, m, m etc which - using a domain overlay - are all very short sprint style races for a horse race.
Similarly, barriers 1, 2 and 3 being on the very inside of the race field and closest to the rail all present similar early race challenges and advantages for horses jumping from those barriers. So formulating your betting angles you may want to overlay semantically similar variable groups to test your betting hypothesis. Betting outcomes, and the randomness associated with them, at their core are the types of things the discipline of statistics was created to solve. Concepts like sample size, expected value, and variance are terms you might hear from sophisticated and some novice bettors and they are all drawn from the field of statistics.
So back Little Vulpine whenever it races? Sample size and variance are dominating this simple measure of historical POT. Instead what we can do is treat the historical betting outcomes as a random variable and apply some statistical tests of signifance to them.
A more detailed discussion of this particular test can be found here as can an excel calculator you can input your stats into. The TLDR version of this test is that; based on your bet sample size, your profit, and the average odds across that sample of bets, the calculation produces a p value which estimates the probability your profit or loss happened by pure chance where chance would be an expectation of breakeven betting simply at fair odds.
This probably fits within the types of betting angles people before you have already sucked all the value out of long before you started reading this article. So despite high lay POT none of these angles suggest an irrefutablely profitable angle laying these combinations. Moving up slightly in level of difficulty our angles could include different kinds of reference points.
Jockeys seem to be a divisive form factor in thoroughbred racing, and their quality can be hard to isolate relative to the quality of the horse and its preperation etc. Plotting this ratio for jockeys in our training set we can see which jockeys tend to have high market support by a high ratio horses they are riding tend to shorten before the off.
We then calculate the same summary table of inputs profit, average odds etc for backing these jockeys at the BSP given some market move.
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