Calculators & Tools
New to matched betting? Learn how to profit from bookmaker promotions in my complete matched betting guide.
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This calculator is for laying against ‘multiples’. A multiple is just a single bet that includes more than one selection. These include ‘doubles’ (betting on two results), ‘trebles’ (three results), or ‘accumulators’ (more than three results). Some examples include ‘Red Rum and Shergar to win their respective races’ (a double) or ‘Man City, Chelsea and Arsenal all to win’ (a treble).
Bookmakers often make placing a multiple bet the qualifying requirement for a free bet or bonus, or they’ll sometimes offer boosted odds on specific selections.
If the events don’t overlap, you can use this calculator to lay against those multiple bets. If all legs have won leading up to the final leg, you can choose between breaking even if the last leg loses or an equal position, no matter the outcome of the final leg. You’ll break even if your multiple bet loses before the final leg.
In my Laying Multiples Guide, you can find full details on claiming free bets and bonuses that require qualifying multiples. Often you can use my main matched betting calculator instead of the one above. My Sequential Laying Guide covers instances where this calculator would be needed, which can often result in a higher profit. However, you must monitor results to know what bet to place on the next leg.
The calculator uses Smarkets colours (green for back, blue for lay) by default. For Betfair colours (blue for back, pink for lay), you can switch in the main website navigation – under the palette icon on non-mobile devices.
Laying multiples is part of a greater whole we call ‘matched betting’. In general, it is a way of exploiting bookmaker promotions to make a predictable profit from each one. By covering all outcomes of an event, you can meet the requirements for claiming free bets or bonuses while your bets cancel out, resulting in an overall profit or loss close to breakeven. You can then repeat the process to extract about 80% of the free bet amount. For example, you can earn about £8 profit from a £10 free bet.
My comprehensive and free Matched Betting Guide will take you through the basic concept with a complete walkthrough of your first bookmaker promotion. You’ll even earn about £15 in the process.
Beyond that, my Matched Betting Academy details how to profit from every UK bookmaker’s ‘welcome’ offer, all for free. Designed and tested by matched betting experts, it also provides techniques to make money from extra place offers, 2UPs, price boosts, and other recurring existing customer offers, all logically structured and well-paced.
Make £600+ from bookmaker welcome offers.