How an accumulator is formed

Choose a selection in one event, then add selections from other events to the same bet slip. Decimal prices are multiplied to calculate the combined price before any applicable adjustment shown by the sportsbook. The number on the slip is the one to review before placing the bet.

Editorial illustration · BAR1
Illustrative artwork, not a screenshot of an operator’s cashier or game lobby.

What happens when a leg is void

A postponed event, non-runner or other void selection can affect an accumulator differently depending on the market and rules. The sportsbook may remove a leg and recalculate the remaining bet. Check the settlement rules for the specific market rather than assuming every case is identical.

A worked calculation

For decimal odds, multiply the stake by the combined decimal price to calculate the stake-inclusive potential return. Subtract the original stake to find potential profit. The betting calculator on this site performs that arithmetic from the values entered by the reader.