#### Lay Kelly Staking Plan

A very good explanation of Kelly Betting for back and lay can be found here – Kelly Criterion – Part 3a – Backing and Laying Bets with Betfair.

One of the problems we have with any kelly betting is what to use as our edge.

For help on calculating layers edge please view : https://www.thestakingmachine.com/how-do-we-calculate-layers-edge/

There are 2 ways of looking at lay kelly staking.

• It is the reverse of Back Kelly. So if your fraction to bet in the back kelly calculation is negative. This becomes your lay kelly fraction to bet. The kelly formula is telling you that if you were to place a back bet there is no value in doing so. However if you were to place a lay bet there would be value in doing so.

• It can be calculated from the lay equivalent of the back kelly formula.

Once the fraction to bet is known it can then be divided by our divisor if we have one. The next stake can then be calculated. At this point you must decide whether you are going to use f* to use as your stake OR your liability.

So for

Stake = fraction to bet * Bank Total

or

Liability = fraction to bet * Bank Total

In which case your stake is then calculated according to the liability.

In TSM you can choose either option. You can also choose whether your Total Bank is fixed or a cumulative total.

## Automated Betting Software - The Bet Machine

Our sister software – The Bet Machine – TBM was released in 2020.  Every Back/Lay Staking Plan in TSM is available to use in The Bet Machine.

Used in conjunction with Gruss Betting Assistant, TBM is compatible with both Betfair and Betdaq Betting Exchange.

TBM incorporates Race Card data for UK/IRE Horse Racing and UK Greyhound Racing.

Create your own Horse and Greyhound Selection Systems in TBM by using the built in System Builder tool – Selection Hunter. Back Test your designed systems and find your edge.