Multi lay calculatorsplit a lay stake across outcomes.

What does the multi lay calculator do?

A multi lay calculator lets you split a lay stake across two or more outcomes at the betting exchange. It works out the exact lay stakes needed for each outcome, shows your combined lay odds and gives a breakdown of liability and profit for every result.

This is useful when you want to cover multiple selections in the same market – for example two horses in a race, several tennis players, or any event where multiple outcomes can be laid to hedge your bookmaker bet.

• Calculates lay stakes for two or more outcomes
• Shows combined lay odds based on implied probability
• Breaks down liability for each outcome
• Works for normal bets and free bets (SNR)
• Optional underlay mode to skew EV towards exchange profit

When should you use a multi lay calculator?

Most matched bettors use a multi lay calculator when their bookmaker bet has more than one realistic outcome to hedge. The aim is to smooth your profit or reduce variance by splitting your lay stake across multiple selections.

• Horse racing – laying two or more horses
• Tennis – covering two strong favourites in early rounds
• Football markets with multiple outcomes
• Advanced reload offers
• Value bets where you want to hedge part or all of the position

The calculator removes the heavy maths and gives you the exact numbers for each outcome, including liability and total P/L.

Example: splitting a lay stake across two outcomes

Imagine you place a £20 bookmaker bet at odds of 4.00 and want to hedge by laying two horses at the exchange:

• Horse A – lay odds 5.0, commission 2 percent
• Horse B – lay odds 7.0, commission 2 percent

The calculator will work out:

• Lay stake for Horse A
• Lay stake for Horse B
• Total liability across both lays
• Your profit or loss if A wins, if B wins or if the back bet loses

This gives you a clean, balanced hedge with no manual calculations.

What is combined lay odds?

Combined lay odds represent the implied probability of all your lay outcomes added together. The calculator works this out automatically using:

1 / (1/odds₁ + 1/odds₂ + 1/odds₃ …)

This lets you compare the overall hedge to a single lay bet and understand how your risk is distributed across outcomes.

Multi lay calculator FAQs