This is how lay odds look like on the Betfair Exchange


The odds of the back bet are not that important because our lay bet must be placed at odds at least half as high as the back bet.


Our task is to place a back bet, no matter the odds, and then place a lay bet during the race.

Etsitään vieläkin isommat kertoimet! Pörssin vastavedon kertoimen pitäisi olla kuitenkin edelleen suht lähellä (vedonlyöntisivuston) back-kerrointa. Hyvät kertoimet ilmaisvetoon ovat esim. 6.5 ja 7 Lay.

Stakes, liability, and potential profitsBetfair lay calculator

For example, if you’re placing a free bet, and will receive a further free bet if it wins (for example if completing the Betfair Exchange Free Bet Streak offer), you might consider overlaying, to boost your profit if the exchange bet wins, as you know you’ll have the chance to make additional profit from a further free bet if your bookie bet wins. You can use our advanced calculator to work out your profits in either case with the custom lay tool, as shown in the example below.

Of course, you cannot make a profit by backing both players at these prices, as the book percentage is 103.59%.

However, if Bookmaker B offered 1.91 for McEnroe, you would then have a book of 97.81% from .

As with arbitrage the knack to curve betting is timing and successfully laying a selection at a shorter price than you have backed it. This type of betting is purely orbited around events before a race start or game kick-off and, if done successfully, the outcome of the event will have no bearing on your ability to win.

This frees up more time to calculate your potential lay returns.

- Rather than solely placing a lay bet at an exchange, it may be worth looking into matched betting with a sportsbook on the side.


Liability = [lay odds x backer’s stake] – backer’s stake

A back-and-lay bet in is easy to follow, as you’re betting on certain events within a match or tournament to occur or not to occur.

Lay Betting Calculatorlay bettingPremier League

As standard, our Matched Betting calculator will work out the right amount to lay to produce equal profit regardless of the outcome of an event.

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If you do not want to waste time calculating the potential returns from lay bets, then opting to go with one of these Lay of the Day tips could be ideal.

Here's the original lay bet calculator video.

Remember, Bookmakers profit from laying bets. Hence, their odds tend to be underpriced for Backers. Therefore, aim to lay bets at odds close to those offered by Bookies.

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Lay bettinglay betting mistakesLay Betting Calculatorrisk management in betting

Profit = (Back Odds – Lay Odds) * Stake / Lay Odds

For the purpose of this example, we are going to show you how to place a lay bet on Paris Saint-Germain. Remember, this the same as backing Paris Saint-Germain not to win.

lay bettingback and lay betting

The most obvious way to take advantage of lay betting is through Matched Betting. This is a technique that takes advantage of bookie offers, allowing you to place a qualifying back bet and lay it for a loss of only a few pence, and then use your free bet reward to make a guaranteed profit - so long as you do it right.

Lay Betting Calculatorhow to manage liability in lay betting

Lay betting gives you a chance to win more frequently than you would have with back betting. However, you need to understand the implication of playing the role of the bookmaker when lay betting.

I have found the following formula: LAYODDS = 1 + ( 1/(BACKODDS-1) ).

The lay odds on the game you intend to stake on will be available on the betting exchange site. Provide the right odds in the calculator to get an accurate calculation of your potential winnings.

The example assumes that your Betfair commission rate is 4%.

However, there can be a downside and that is the potential for either the back or lay price to vanish before you have completed both trades. And, in the world of gambling, prices do move quickly.

You lose £200 from your Back bet, but win £320 from the Lay bet.

Moreover, you can find calculators that are also ideal for identifying the best odds to back and lay if you want to make a tidy profit.

Top Tips for Maximising Lay Bet Winnings

If you simply do not have the time for calculating winnings or find that this step is just a touch more complicated than you might like, there are cheats sheets offering shortcuts to finding the ideal lay bets and maximising your profits.