Kelly Criterion betting calculator


The Kelly Citerion calculator calculates:

Calculating the optimal stake according to the Kelly criterion
The Kelly criterion calculates your optimal stake based on the size of your bank relative to the difference between a selection's price and its actual probability of winning (ie relative to the "value" in the price). In this example, you have a bank of £250 and want to back a selection priced at 2.22 because you believe that it has a 50% chance of winning. The Kelly Criterion calculator recommends an optimal stake of £22.54.

Calculating the optimal stake according to the Kelly Criterion

Note that if the selection were priced at 2.00, the Kelly criterion would recommend a stake of £0.00, in other words "no bet". Another way of looking at this is to consider that the rational better would decline the offer of evens for heads in a coin toss. If you are using a betting exchange price, also remember to use Actual Pricer to obtain the selection's effective price after commission.


RebelBetting Lite - great for arbitrage betting beginners
Home > Kelly Criterion examples
400 Casino Bonus
400 live casino blackjack bonus now available for new UK + IRL accounts!
T&Cs apply.
Betfair Casino
Best Betting Exchange
Betfair has the best prices, deepest liquidity, most comprehensive markets and most extensive live streaming!
Betfair Exchange
Smarkets Exchange
Good betting exchange for soccer & tennis. Only 2% commission and get 5 x 10 free bets when you open an account.
Smarkets
Betfair OddsBoosts
Betfair Sportsbook offers lots of tasty enhanced fixed-odds prices in the right sidebar each day. Don't miss them!
Betfair Sportsbook

Copyright 2017, Arb Cruncher. All Rights Reserved.