# Optimal Betting Strategies And The Kelly Criterion

Caulfield Cup 2022 >If you wa­ger one buck at a time, you win al­most cer­tainly. This particular formula has polarizing views from betting experts and bettors alike. With one extreme in its favor and the other against it, it is quite a controversial strategy. “q” is calculated as the chances of the proposed wager losing i.e., “q” is calculated as 1 minus “p”. If the same wager example is used, with a 30% chance of success, there might be a 70% probability of it losing.

## Are The Fixed Matches Profitable For Bookmakers?

To turn the number returned into a percentage simply multiply it by 100. So if the Kelly equation returns a number of 0.04 you would multiply informative post it by 100 to get 4%. Using the results from your past trades calculate ‘W’, which is the probability of a trade ending as a winner. You do this by dividing the number of winning trades by the total number of trades.

## Kelly Criterion Blackjack Betting System

However, based on your own analysis, you believe Real Madrid has a 65% chance of winning. Your \$1000 deposit has shrinked to \$111 within 3 bets and now you will need years just to recover from those losses if you do safer bets or . Kelly Criterion works in theory if you have an infinite amount of games and an infinite bankroll to restock. Where “b” is the multiple of our stake we can potentially win .

This yields a -5 percent Kelly Advantage… which is no advantage at all. Because there is such risk of tapping out if one overestimates his true advantage, most bettors use a fraction of Kelly to determine their stake. Finally, the Kelly criterion offers a clear advantage over other staking methods, as it involves less risk. However, it requires accuracy in predicting the probability of an outcome and we should also not expect a rapid increase in our capital, even if we follow the system with discipline. Many articles suggest using the Kelly criterion or some variant of it when it comes to staking methods. Basically, with the Kelly criterion we calculate what percentage of our capital we should wager on each value bet, in order to see our capital growing exponentially.

How would optimal bet sizes vary with changes in the probability of winning and edge? If the odd were in your favor (80% chance of winning) and your edge stood at 1.2, should you bet the entire bank or only part of your capital? The table below presents optimal bet sizes based on Kelly for changing values of edge and odds. What is the Kelly criterion, and why has it gain so much attention from cricket punters and other gamblers around the world? As it applies to sports wagering, the Kelly Criterion is used to determine precise staking.

## Kelly Criterion Applied Roulette

If the expected value is greater than zero and you have one shot, you would be better off betting everything, assuming you’re not adverse to losing all your money. If you had an infinite number of chances, then you should use Kelly Criterion. But in most decisions we make, we have a finite number of chances to play. Furthermore it is important, that overbetting does more harm than underbetting.

If you’re not convinced about the validity of this strategy, here’s an interesting bit of info. Although the Kelly strategy was initially developed for betting, the same ideas were used to explain diversification in financial investments. Nowadays, the Kelly bet is a big part of mainstream investment theory.