Laying and Exchanges Advice

What Is An Exchange? An exchange is a betting website where punters bet against each other. Punters are able to assume the position of the bookmakers and offer odds on things not to happen as well as betting in the normal

Laying and Exchanges Advice
Laying and Exchanges Advice

What Is A Betting Exchange?

In this guide, we will introduce you to and explain the workings of a betting exchange. Differing from traditional bookmakers, a betting exchange is different and often the question of what is a betting exchange is raised.

A betting exchange is a platform where two types of bets are brokered. A traditional back bet can be placed against another player who is offering a 'lay bet' A lay bet being what a traditional bookmaker offers. Therefore, a betting exchange is a place where you can both be the bookmaker and bet against other players acting as a bookmaker.

How to make a 'back' bet on a betting exchange

Making a 'back' bet on a betting exchange is the same as making a bet on a selection with a traditional bookmaker. There are however some small differences that can play to your favour as a punter, such as requesting prices that are not available at the time of placing the bet.

Bet at Bigger Odds on Betting Exchanges

You can make orders for bigger odds when backing a selection on Betfair. With luck, you will be matched at bigger prices than available elsewhere for the same bet.

When making a back bet on a betting exchange, you will have an available price to bet on. In addition to this, you are able to see and make a request for higher odds than are available at the time of placing it. 

If you decide to 'place an offer' at a higher price, this bet will be placed into the system, and you can wait to see if someone else is willing to 'lay' your bet to the odds you have requested. 

If you place you bet at higher odds than are currently available you bet will be placed in the system and marked as 'unmatched'. This simply means that the back bet you have ordered has yet to be matched by someone willing to 'lay' the bet at those odds.

Sometimes, you order will be 'matched' by a lay, other times it will remain 'unmatched'

Let's look at a simple example of placing a back bet on a betting exchange.

Exchanges Example

You see the odds on Liverpool to beat Chelsea are 2.5

  1. You could make a back bet at 2.5 immediately
  2. You could offer [place an order] to bet at 2.6 or 2.7 or 2.8 and hope that someone matches your bet.

Obviously the higher odds you request the less likely your bet will be matched, and clearly people looking to Lay Liverpool will take the lowest odds requested first.

How to make a 'lay' bet on a betting exchange

What Is Laying?

When you think an outcome will not happen you have the opportunity of 'laying' a bet on the betting exchanges. 

Laying on a betting exchange is offering to lay a bet by offering odds to another punter on the exchange who wants to 'back' the outcome. You offer odds and your 'liability', [the amount you are willing to lose] if you are wrong and the punter has the option to accept the odds you are offering or not. 

'Laying' is offering odds on an outcome you think will not happen

When you 'lay' a bet, you are acting as the bookmaker and taking a bet from another person on a betting exchange. If you are right, you win the amount the 'backer' bets, if you lose, you have to pay the other person the amount they win.

The rise in popularity of exchanges has lead to many punters trying their luck at acting as the bookie and laying bets.

In order to lay a bet you have to see what price it is currently trading it and decide whether you want to lay at that price and have your bet matched straight away or you can offer your own odds in the hope that a backer will want to match your bet at those odds. If the bet is not matched then no bet takes place and the stake remains in your account.

Laying Example

In the Liverpool v Chelsea match, rather than betting on Liverpool you could lay Chelsea, that way if Liverpool won or drew then your bet would win.

Lets say Chelsea are 2.8 to back and 3 to Lay.

You don't want to risk an unmatched bet so you lay £50 at the available price of 3 (2/1).

This means someone else is betting on Chelsea at 2/1 and if Chelsea win you have to pay them!

Hence if Chelsea win (and your bet loses) you have to pay out £100, but if Chelsea lose or draw (and your bet wins) you get to keep their £50 stake.

So effectively you are risking 100 to win 50, in this example very much like betting £100 on "Liverpool or Draw" at odds of 1/2.


[Example] Making a Bet on a Betting Exchange

Placing Your First Bet

Leading betting exchange Betfair have produced a video explaining how to place bets on Betfair for beginners.

Advantages Of Using Exchanges

1. Better Odds for Backing

Exchanges claim to offer on average 20% better odds than traditional bookmakers. 

This figure is somewhat skewed as most short-priced selections will be more or less the same odds on an exchange as they will be in the bookmakers, sometimes they are even worse. 

However, bigger price selections, especially those over the odds of 10/1, you do often receive a much bigger price than the traditional bookmakers are offering but always check all bookmakers odds as well as exchanges as this isn't always the case.

2. Betfair SP

Betfair has its own Starting price [SP] system in place which is far superior in terms of the size of the odds against the Industry Sp prices.

If you like to bet and NOT take a price then I strongly suggest using an exchange for SP betting. You will not get things like 'Best Odds Guaranteed' but you will certainly, over time, get better odds than trying to take prices to beat the market. 

I personally recorded every bet I made over a three year period with

  • SP
  • Price Taken
  • Betfair SP

Betfair SP outperformed industry SP by 30% in my case, with the average price of winners in the 9/2 [5.50] range.

3. Trading on Exchanges

Exchanges are unique in that they let you trade on events and lock in a profit whatever the outcome before the event takes place. With traditional bookmakers you can only win money if you correctly predict the outcome of an event but with exchanges you can win money simply by predicting market moves.

It is a little like the stock market in that you want to back at big odds then lay at smaller odds or lay at smaller odds and back at bigger odds. If this is done successfully then the punter can create a situation where they win whatever happens or simply have a risk free bet on an event.

Trading Example

You bet £10 on a horse in an ante post market at 66/1 knowing it is a very likely runner. Lets call this bet A.

Weeks or even months later when other more fancied rivals have been ruled out of the race the horse is now trading at 10/1.

Currently your situation is you get £660 profit if the horse wins, and £10 loss if the horse loses.

Lets say you decide to lay the horse at 10/1 for £50. Call this Bet B.

Now if the horse wins:

  • Bet A wins £660
  • Bet B loses £500
  • You win £160
But if the horse loses:
  • Bet A loses £10
  • Bet B wins £50
  • You win £40

By adjusting the stake of the second bet you can adjust your possible returns in each situation. Obviously you win less on the winner this way, but you can guarantee a profit which is often useful.

This is known as 'greening out' as all of the potential wins on each horse will be shown in green, indicating that outcome is profitable.

You can apply this to any market on any sport both before the event starts and also during play if in-running betting is available.

4. Market Warning Signs

Exchanges are renowned for providing information about events that is not publicly available through market moves

For example, horses that are very well backed on the exchanges are very likely to run well whilst those that drift alarmingly rarely perform well. 

In ante-post markets, a major drift is often followed by announcement in the following days that a horse is not going to take part in the race.

5. Betting In Running

Exchanges offer the option of in-running betting on all UK and Irish horse racing, almost all football matches and many other sports and televised events.

Betting in-running adds an extra dimension to the service they offer as it caters to the needs of even more punters. Betting in running requires different disciplines to regular betting.

Betting in-running advice is a complete subject on its own and is available for most bookmakers but the exchange is where the betting in-play comes into its own.

6. Hedging for Better Cash Out Returns

Cash-out is part and parcel of most punters weekly activity today and you can even cash out on exchanges today too. However, the cash-out offers generally available are not the best returns you can get at the time you make your decision to do so.

Cash-out is just another name for 'hedging' but if you can do the math yourself, or use the Exchange 'what if' facility, you are likely to be able to make better cash-out decisions for your pocket.

Hedging Example:

  1. You have a football accumulator with 5 selections.
  2. 4 Selections have already won and you stand to win £400
  3. The final selection is priced at 1.95 to back and 2.00 to 'lay'

You could lay the selection not to win, for £200.

  • If the selection won you would lose £200 on the lay but win the £400 on the accumulator = £200 profit
  • If the selection lost, you would win £200 on the Lay bet you made, but receive nothing back for the losing accumulator = £200

That lay stake could be £100, £50 or if you had completely lost confidence in the final selection, even more. It is up to you, but it is good to have the option to hedge your bets with a betting exchange account.

Hedging Advice

This OLBG member found himself in a good position on a high priced bet and wanted a way to hedge.

See how OLBG members helped him

Disadvantages Of Exchanges

1. Liquidity

Unlike at a bookmaker where (within reason) you can bet what you want at the price they quote, with exchanges it depends on what the other punters are offering. 

Much of the time this isn’t a problem but on some of the smaller events or less popular sports then there may be very little available at sensible prices.

What is Liquidity on a Betting Exchange?

Liquidity is the amount of money available to back or lay on selections within the given market you wish to bet in. You will find more money, and therefore liquidity on the bigger events and more popular markets and far less money to bet in the more marginal sports and specialised betting markets.

The Bigger the Exchange the better the Liquidity

It makes sense that the more users a betting exchange has, the greater the amount of money will pass through the exchange, therefore offering greater liquidity on the most popular markets and events.

We undertook a comparison of betting exchanges and found that of the 3 exchanges available in the UK, the best liquidy was to be found in the following order.

  1. Betfair
  2. Smarkets
  3. BetDaq

Sometimes you will find you will be able to make a bigger bet with a traditional bookmaker where there is less exchange liquidity on smaller events and more marginal markets than betting exchange liquidity will offer.

Liquidity Example

You may see the odds for Liverpool at 2.5 but the amount of money available at that price (usually shown underneath) is only £4. The next best price might be 2.46 where there is £12,000 available. Hence if you wanted to bet £50 on Liverpool you could only match £4 at 2.5 and £46 at 2.46.

2. Unmatched Bets

If you are placing many bets it is not too uncommon to forget about some unmatched bets you may have put up. 

Due to changes in circumstances such as non runners in ante-post horse racing markets or fallers on in running horse races, the odds you have put up may become very enticing for someone else and they may be taken before you have a chance to react and cancel your bets.

Bets are sometimes canceled though to protect the punter from this. In particular any pre-event market will be closed at the off and all bets cancelled and a new market potentially started for in-running betting.

Betting Exchange Commission


Exchanges don't actually lay any bets themselves so they make their money by charging a commission on each winning bet. The typical commission charge is 5% of winnings.

Compare Exchange Commissions

Commission from Exchange to Exchange can differ at time. We have compared them to see who comes out tops.

Betting Exchange Commission Comparison

You can check the current commission charges from betting exchanges on our exchange comparison page

Commission rates will decrease the more you bet with exchanges but to make a significant decrease in the figure you will need to be a very serious punter placing several bets a day. It can sometimes be difficult to work out what the real odds you are getting once the commission has been applied.

At ValueChecker this is taken care of as the prices for exchanges take commission into account. If you are on a lower commission rate than 5% you can adjust the settings easily to reflect that.

Commission Example

If you bet £10 at 6.0 your return is £60 before the commission. If you are on 5% commission this is applied to your winnings (£50) and hence £2.50 commission is deducted from your £60 return leaving £57.50

Advanced Laying Techniques on Betting Exchanges

There is a huge difference in knowing how to use exchanges and knowing how to make the most of them and this betting school lesson aims to help you understand some of the more complex uses of exchanges in a simple to understand format

Easy to Understand Advanced Laying on Exchanges

We've stripped out the jargon in this advanced section to help you move forward from basic betting exchange laying

Advanced Laying on Exchanges

Over the past decade or so laying has become more and more popular.

Most punters will either be laying an outcome because they think it has very little chance of being the winning outcome or because they think the odds are too short for that outcome.

They are making a perceived ‘value lay’. Both of these styles of laying have their advantages and disadvantages and include the following appraoches

  • Laying likely losers
  • Value laying
  • Ideal Laying opportunities
  • Place laying
  • Trading
  • Cashing out
  • In Running Laying
  • Betfair Sp laying

Laying Likely Losers

If laying a selection simply because you think it has very little chance of winning you are most likely laying bigger priced bets which makes your returns smaller. You will probably have more successful bets this way but a couple of lays that go on to win can cancel out many successful lays, presuming you are not laying very short odds.

Lay when you think it will lose

Instead of not betting on an outcome because you think it won't happen, try laying it to another punter on a betting exchange and enter the world of lay betting.

Value Laying

If laying selections because you think their odds are too short you will probably find you have fewer successful lays but the long term profits may improve, presuming your intuition about value is correct. 

Reputations often play a large part in deciding the odds, more so than form on many occasions and this can lead to some selections having much shorter odds than they have any right to be. 

These reputations will sometimes turn out to be correct but often a reputation is no substitute for solid form. Correctly choosing when to follow form and when to follow reputation can be a successful part of any laying strategy.

Laying against Cognitive Bias

Sometimes a big football team will be a very short price to win even if they are out of form. Some of the best value can be found in laying bets on the bigger names.

Ideal Laying Opportunities

Ideally your lays will fit into both categories of lay, you will not only think the selection has little chance of winning but you will also think the odds are far too short. 

This sort of lay might pop up in a horse race, when a horse has beaten weaker horses by a wide margin so is a short price next time out but this time the horse is running on ground conditions in which it is unproven, so could easily flop.

Win or learn

Alternatively in team sports a side may have had an easy run of fixtures making their form or ability look better than it is leading to a too short a price being offered. On top of that they might have a couple of key injuries which massively reduce their chances of getting a result in their next match. 

Looking out for these lay opportunities can often lead to the best profits and best strike rates.

Place Laying

Place laying is ideal for when you are really confident about a selection losing or simply want to reduce the odds at which you are laying. 

If you think the bookmakers have wildly overestimated a team or horse you can lay them to not finish in the places at around 1/4 of the odds you could laying the selection to win (depending on place terms). 

Sometimes you may find yourself opposing a selection but not wanting to lay it at the full odds, in this instance place laying may appeal more when you can lay the selection at shorter odds but obviously the difference in odds reflects the difference in chances of the selection winning and placing.

Place Laying, Horse Racing System

Place laying is a system that is often used to make slow and steady profits from horse racing.

Read more about betting systems


Trading individual sports is something that is covered in more depth later in the betting school guides but there are broadly two types of trade:

Planned Trades

Often you may spot an opportunity where you are very confident that the odds of a selection will move in one direction, be it before an event takes place or during the event.

In these instances, you can back or lay the selection early (back if you think the odds will shorten, lay if you think the odds will lengthen) and then make the opposite bet later when the odds have changed in your favour. 

Scalp Trading on Betting Exchanges

OLBG Blogger nors shares his expertise on scalp trading using a betting exchange

Read Now

Presuming you are correct about the odds change you can guarantee yourself a profit whatever happens, the more the odds change the more profit there is to be made.

Unplanned Trades

On other occasions, you may place a genuine bet but either change your mind or find yourself in a great position where the odds have changed massively in your favour. 

You may change your mind if conditions change or have simply got much bigger odds than are currently available and when this happens you can simply lay your bet on the exchanges to either get rid of your bet if the odds are still the same or guarantee a profit if the odds have changed in your favour.
Football earnings

Cashing Out

An increasingly popular tool on exchanges (and other traditional bookies are now following suit) is the Cash Out option. 

Depending on how well your bets are currently doing and how many selections might already have won you are offered an amount to close the bet and end any risk. 

The amount offered will depend on the likelihood of the bet winning. Sometimes you might accept a lesser amount than you would have won only to watch your selections still win but other times you'll collect on a bet that goes on to lose. 

There is a forum thread discussing the Pros and Cons of Cashing Out which is worth a read if you like to cash out or are thinking of doing so more often.

cash out

In Running

In running betting is hugely popular these days and is covered in detail in other betting school lessons such as Betting In Running. In running betting began with the exchanges but now regular bookies offer in running betting too, however sometimes they don’t offer as many markets as exchanges and often the odds aren’t as competitive as they are on exchanges.

Asking For A Price

Betfair SP

Punters who bet starting price with bookmakers might be better off turning their attention to Betfair and in particular the Betfair SP. The Betfair SP is calculated by looking at the relationship between amounts of money requested at SP by opposing betting parties and it is claimed that it is a much fairer way of deciding the starting price than the method used by traditional bookmakers.

The SP is known once the race begins and is often better than the bookmakers SP, not long after Betfair SP became available a study over 18 months by showed that Betfair SP was higher than bookmakers SP 86% of the time resulting 14.5% better returns taking into account 5% commission for a winning bet on Betfair. However these margins were reduced when backing just favourites which is something to contemplate for favourite backers.


Anyone reading up about how to make the most use of betting exchanges will probably have come across information about bots or betting bots. This is effective software that will automatically trade for you given certain criteria for bets and trades that you request. There are a couple of threads on the OLBG forum about betting bots and this one about the use of betting bots includes links to some very informative blogs about bots from exchange expert davidg3907.

If you have a question about betting exchanges you can ask on the forum thread or for any other information about exchanges visit the OLBG Betting Trading & Exchanges Forum.

Laying Horses

Bookie Price And Exchange Prices

It is always important to remember that prices on exchanges are invariably bigger than those available at the traditional bookmakers. This is generally because the bookmakers margins are removed, and exchange users pay a commission on bets.. Anyone who is laying bets on exchanges is going to have to lay the bets at over the odds available elsewhere so it is important to keep value in mind.


If the bookies are 9/4 about a favourite in a particular race the price on Betfair is likely to be around the 5/2 mark.

Laying In Running

One type of laying that is available on the exchanges is laying in running. This means looking to lay horses whilst they are taking part in their races. It is a somewhat specialist skill as the layer will need to have a good understanding of the way horses travel, what can lead to them getting blocked in and a good understanding of pace. It is also important to have a great knowledge of the form book as horses that appear to be going well but find little under pressure are an in running punter's dream.

Things to learn before laying horses

  • Understand pace if you are laying in running
  • Learn how different horses travel
  • Study market movements
  • Understand ante post markets as they can be layers gold mines
  • Identify reasons to oppose horses



A layer on an exchange can simply make money by laying horses that are later going to be trading at a bigger price. Once the layer has got themselves into a position where they will profit if a horse is beaten, they can then back the same horse at bigger odds (if the market allows it) without needing to deposit further cash based on the position they have already achieved. 

The amount of profit that can be locked in will depend on the original stake and how big the drift in the horse's price has been.

Data analysis

Predicting which horses are going to contract in price and which are going to drift is often difficult. There are, however, some horses that always seem to drift in the betting and there are also horses that have not run for a while that drift because of question marks over their fitness.

 Other reasons horses drift include being unproven in the conditions of the race (ground or trip) or simply due to the strength of other horses in the same race.

OLBG member Nors is a big fan of trading and he has written a blog called Betfair HorseTrading and that is a great read for anyone wanting to learn more. Nors also has an approach to trading horses just before the off and you can read more about that here.

Trading For A Free Bet

You find a horse that you expect to be gambled on during the day and hence you expect its price will shorten.

no risk


You have £100 on at 8/1 in the morning (Bet 1)

An hour before the off the horse is trading at 5/1.

You can lay off your £100 stake at odds of 5/1 (Bet 2)

If the horse loses:

Bet 1 loses => you lose 100

Bet 2 wins => you win 100 (the amount of stakes you layed)

You break even overall

If the horse wins:

Bet 1 wins => you win 800

Bet 2 loses => you lose 500 (the amount you had to pay out laying 100 @ 5/1)

You win 300 overall

So essentially what you have created is a situation where you win 300 if the horse wins but lose nothing if it loses - essentially a free bet!

Ante Post

Ante post betting is often a layer's paradise because a horse has to simply not run for the layer to win the bet. There is always the chance that a horse will be laid at a much bigger price than it will be on the day so ante post laying has to be done with plenty of consideration.

Trainers will often state that horses won't run in races if the ground turns a certain way and the bigger trainers often have several choices for what horse they run in a given ante post race. 

Correctly predicting how the ground may ride on the day of the race or working out a trainer's plans for a race can be very profitable. Even if the layer gets things wrong about whether or not the horse will participate, the horse still has to win for the layer to make a loss.

Simple Laying Of Losers

Many layers simply lay horses they do not think are going to win. It can be the simplest form of laying and very profitable if done correctly. 

There has to be a reason to oppose the horse that is being laid but in racing there are many factors that can count against a horse and if one or more of those factors is not in place then it can be the difference between a horse winning by a wide margin and being beaten by a wide margin.
some risk

Reasons To Oppose


Sometimes a horse will simply be trading at a price that does not truly represent its chances in the race. The lower the price relative to its chances the better the value for the punter who is laying it. 

Laying all short priced horses is not a guaranteed route to profit, as is the case for laying all favourites. Each horse needs to have its relative chances and odds evaluated before a logical decision is made.


However good a horse is, some just cannot go an inch in certain types of ground. Breeding will suggest what type of ground a horse is likely to enjoy but nothing is set in stone with breeding. 

A horse that previously struggled in a certain type of ground that is meeting that ground again after showing improved form back on their favoured surface is often a good lay.

Over the fence


When a horse runs at a new distance for the first time they are always running in unknown territory. Previous races can suggest a step up or down in trip might bring about improvement in the horse but it is never guaranteed. 

Again, breeding is likely to suggest what sort of trip is going to be suitable but there are no guarantees. Going against the grain in opposing something that many others think is going to improve can often be profitable for layers if the price is short enough.

Quirky Horses

Some horses seem to struggle to get their head in front whatever the opposition. 

A horse with a string of second places next to its name could be described as consistent but might also be considered a 'quirky' sort or even a 'dog'. 

Horses that find little under pressure or don't do anything when hitting the front can often be artificially short prices when dropping in class and many layers will be willing to take them on whatever the opposition.


Some horses are better suited by different types of course. Key considerations are:

  • Whether the bends are left or right handed.
  • The length of the final straight - some horses need a longer straight to get going.
  • The sharpness of the turns & hills - courses like Chester and Brighton have particularly sharp turns and courses like Epsom and Lingfield have lots more undulations than many courses.

Of course you are not just looking that this from the perspective of the horse you are laying but also the other horses. Maybe one of the other horses has a particularly good record at this track but runs badly elsewhere.

Time Since Last Run

The ideal time between runs can vary by horse and often the distance it runs over and the length of the campaign can be a factor. 

21 days is often cited as a good length of time between races. Very short periods since the last race often create more uncertainty about a horse, as do very long periods which bring into question the horses fitness.

Class Of Race

If a horse is now attempting a higher class of race than it has encountered before then even if it has won a lot of lower grade races this can seriously reduce its chances of success yet quite often the fact that it has won a lot in lower grades will make it quite a short price

Just Poor Value

The beauty of laying is that if you think a horse is very poor value from a backing perspective then this could make it great value for laying.


How An Approach To Laying Might Be Different To Backing

Davidg3907 shared his thoughts on the OLBG forum about how differently a punter might look at a race if he was looking to lay a horse compared to how he might look at it when looking to back a horse:

There is possibly a major difference between selecting horses with a view to BACKING or LAYING.

When looking for a horse to back, it is generally the custom to check all or at least most of the runners to some degree. Only then will value be sought. When looking for a horse to Lay, (apart from if using any form of the systematic selection process) I tend to start by surveying the sharp end of the market and then try to match the horse to the price rather than the other way round. If I don't fancy laying a horse at the price available I simply move on, there are more shorties waiting to be laid. As far as racing is concerned I also consider tissues to be of more practical use when backing. Tissues on a football match are a different matter as you may still be prepared to Lay any outcome. In a field of 8 horses one is in theory prepared to back anything substantially over the tissue price. The same does not necessarily apply when laying horses. Just because the tissue says you think it should be a 12/1 chance there will not necessarily be a rush to Lay it at 8/1 on Betfair even though the odds theoretically show value.

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