Guides
Stake size and Kelly calculator
Staking matters as much as picking. The Kelly formula gives the stake that grows a bankroll fastest if your probability is right. Most people use a fraction of it, because estimates are never exact.
How to use it
We measure stakes in units. 1 unit = 1% of the bankroll. The Kelly fraction = (p x odds - 1) / (odds - 1), where p is your probability.
Full Kelly swings a lot. Quarter Kelly keeps most of the growth with far smaller swings. If the result is zero or negative, the price has no edge and the right stake is zero.
Never stake money you cannot afford to lose. These numbers are maths, not advice.
18+ only. General information, not betting or financial advice. All guides