How to Lay a Horse on Betfair: Step-by-Step

Before you start

To place a lay bet on a horse, you need three things:

1. A Betfair account — specifically the Exchange, not the Sportsbook. These are separate products.
2. Deposited funds — you need enough to cover your liability (we'll explain this below).
3. A horse you want to lay — a selection you believe is likely to lose.

If you don't yet understand what a lay bet is or how liability works, start with our What is Lay Betting? guide. This page assumes you understand the basics and want a practical walkthrough.

Step 1: Open a Betfair Exchange account

If you already have a Betfair account, you likely have access to the Exchange. If not, sign up at betfair.com. The registration process requires identity verification (standard for UK betting sites under Gambling Commission rules).

Once registered, deposit funds. Most people start with £50–£100 while learning. You can always add more later. Betfair accepts bank transfer, debit cards, and e-wallets like Skrill and Neteller.

Step 2: Navigate to the Exchange

On the Betfair website or app, look for "Exchange" in the top navigation. On the website it's usually labelled "Exchange" or "Betting Exchange". On the app, there may be a toggle between "Sportsbook" and "Exchange".

Once on the Exchange, select Horse Racing from the sports menu on the left. You'll see today's meetings listed by racecourse and time.

Step 3: Find a horse racing market

Click on a specific race to open its market. You'll see all the runners listed with two columns of prices next to each horse:

The number shown in each cell is the current price (odds). The amount below it shows how much money is available at that price. More liquidity (larger amounts available) means your bet is more likely to be matched quickly.

Step 4: Read the market

Before placing a lay bet, check these things:

• The lay price — this determines your liability. A lay price of 6.0 means your liability is 5 times the backer's stake. Stick to odds you're comfortable with.
• Liquidity — check that there's enough money available at the price you want. Low liquidity markets may not match your bet, or the price may move against you.
• Time to race — prices are most volatile in the final few minutes before the off. Many experienced lay bettors place their bets 15–60 minutes before the race when prices have stabilised but there's still good liquidity.
• Number of runners — more runners generally means each horse is less likely to win, which favours the lay bettor. Races with fewer than 6 runners carry higher risk for laying.

Step 5: Place your lay bet

Here's the actual process:

1. Click the pink LAY cell next to the horse you want to lay. A bet slip will appear.
2. Check the odds in the bet slip. You can accept the current price or enter your own (if you enter a different price, your bet goes into the queue and waits to be matched).
3. Enter the backer's stake — this is the amount the backer is wagering, not your liability. Betfair calculates and displays your liability automatically.
4. Review your liability — this is shown clearly on the bet slip. Make sure you're comfortable with the maximum amount you could lose.
5. Click "Place Bet" to confirm.

Step 6: Confirm and monitor

Once placed, your liability is held in escrow by Betfair. You can see your open bets in the "My Bets" section. After the race:

Settlement is automatic. The result appears in your Betfair account within seconds of the race finishing and the result being confirmed.

Common mistakes to avoid

New lay bettors frequently make these errors:

• Confusing the Sportsbook with the Exchange. The Sportsbook doesn't offer lay betting. Make sure you're on the Exchange.
• Not checking liability before confirming. At higher odds, liability escalates quickly. Always review before clicking "Place Bet".
• Laying at very high odds. A horse at lay odds of 20.0 means your liability is 19 times the stake. One loss wipes out 19 wins. Most experienced lay bettors stay within the 2–10 range.
• Over-staking. Never risk more than 2–5% of your total bankroll on a single lay bet. This keeps you in the game during losing runs.
• Laying in low-liquidity markets. Small races with little money in the market can have unreliable prices and your bet may not get matched. Look for markets with at least £100 available at the lay price.
• Chasing losses. After a losing lay, the temptation is to increase stakes to recover. This is the fastest way to blow a bankroll. Stick to your plan.

Next steps

Now that you know how to place a lay bet, the question becomes: which horses should you lay?

That's where data comes in. Picking horses to lay based on gut feel is no better than guessing. A statistical approach — analysing strike rates, field conditions, and price movements — gives you a measurable edge over time.

DonkeyRadar does this analysis automatically for every qualifying race across UK, Irish, US, and Australian racing. Our model identifies the statistically weakest horse in each race and publishes the signal before the off. Currently running at a 90% hit rate across all verified signals — every result recorded publicly on the Honour Roll so you can check it yourself.

Read more about our approach in our What is Lay Betting? guide, check our 10 lay betting tips, or see our verified track record.