Bet Size Calculator

Using Our Bet Size Calculator

How do I find the Probability of Success?

In the realm of GamedayMath, this would be the Nostradamus No-Vig odds converted as a percentage.

What is the Kelly Criterion?

The Kelly Criterion is a mathematical formula used to determine the optimal amount to bet based on the edge you have over the sportsbook. It takes into account your win probability and the odds being offered by the sportsbook, and provides a recommendation for the optimal bet size based on your bankroll size.

Why is the Kelly Criterion important?

The Kelly Criterion can help you maximize your long-term profitability by betting an optimal amount based on your edge over the sportsbook. By following the Kelly Criterion, you can avoid overbetting or underbetting and make more informed and profitable betting decisions.

What are the limitations of the Kelly Criterion?

The Kelly Criterion is based on a number of assumptions that may not always hold true in practice, such as accurate win probabilities and consistent odds. Additionally, the Kelly Criterion can be sensitive to small changes in inputs and can lead to aggressive bet sizing in some cases. As such, it's important to use the Kelly Criterion as a tool in your overall betting strategy, rather than relying on it exclusively.

What is the Kelly Multiplier?

The Kelly Multiplier is an adjustment to the Kelly Criterion that allows a user to make the formula more conservative in it's calculation. 1 is considered "full Kelly" and is the default for our calculations. Some users may wish to set this at "half Kelly" (or 0.5) or some value in between if they wish to have a more stable bankroll.