Powerplay247
Exchange guideUpdated 7 min read

Betting Exchange Explained

How back and lay betting works, with the maths for each side

A betting exchange matches players who want opposite sides of the same bet. Backing means betting an outcome will happen. Laying means betting it won't, and you take on a liability of stake × (odds − 1). Prices come from players, the exchange matches the bets, and it charges a commission on net winnings from each market.

By the Powerplay247 Editorial Team. Reviewed by the support desk.

Back

Bet that an outcome will happen.

Lay

Bet that it won't, and act as the bookmaker.

Matched

Your bet is paired with another player's.

Commission

Charged on net winnings per market.

01

What is a betting exchange?

On a traditional sportsbook you bet against the bookmaker, who sets the odds. On an exchange you bet against other players. One person backs India at 1.80, another lays India at 1.80, and the exchange matches them and holds both stakes until the result.

Because prices come from players, exchange odds tend to move quickly and sit close to what the market thinks is fair. Powerplay247 shows back and lay prices side by side on major matches.

02

How does laying work?

When you lay, you take the bookmaker's role. You accept another player's back bet and win their stake if the outcome doesn't happen. If it does happen, you pay out their winnings.

That payout is your liability: stake × (odds − 1). Laying ₹1,000 at 2.00 has a ₹1,000 liability. Laying ₹1,000 at 3.50 has a ₹2,500 liability. The wallet sets aside your liability when the bet is placed, so you need that amount available.

03

What are matched and unmatched bets?

If you ask for a price no one is offering, your bet waits in the market as unmatched. It becomes a real bet only when another player takes the other side. You can cancel any unmatched part before it's taken.

Large bets are sometimes partly matched. The open bets screen shows how much matched and at what price.

04

How does commission work?

The exchange takes a percentage of your net winnings on each market. If you win ₹1,000 on a market and lose ₹400 on another bet in the same market, commission is worked out on the ₹600. You pay nothing on a market where you lose overall. The rate is shown in the market rules.

05

How do you lock in a profit before the result?

Because you can back and lay the same outcome, you can close a position when the price moves your way. This is often called trading out or greening up.

Say you back a team for ₹500 at 3.00 and their price shortens to 2.00. Laying them for ₹750 at 2.00 means you finish ₹250 up whether they win or lose. If they win, the back pays ₹1,000 and the lay costs ₹750. If they lose, the back loses ₹500 and the lay wins ₹750.

At a glance

Back and lay with a ₹1,000 stake

BetOddsIf the outcome happensIf it doesn't
Back2.00+₹1,000−₹1,000
Back3.50+₹2,500−₹1,000
Lay2.00−₹1,000 (liability)+₹1,000
Lay3.50−₹2,500 (liability)+₹1,000

Figures are before commission on net winnings.

Step by step

How to place an exchange bet

  1. 01

    Open a market

    Choose a match and look for the back and lay columns.

  2. 02

    Pick a side

    Tap a back price to back, or a lay price to lay.

  3. 03

    Check the slip

    Read your profit if you back, or your liability if you lay.

  4. 04

    Confirm the match

    Check open bets to see how much of the bet matched.

Watch the liability on long odds

Laying a big price looks safe because it usually wins. When it loses, the liability can be many times the stake. Check the figure on the slip every time.

Keep reading

Quick answers

Frequently asked questions

4 questions

What is the difference between back and lay?

Backing is betting that something will happen. Laying is betting that it won't. A layer wins the backer's stake if the outcome fails, and pays the backer's winnings if it happens.

How is lay liability calculated?

Liability = stake × (odds − 1). Laying ₹500 at 4.00 has a liability of ₹1,500.

Why is my exchange bet unmatched?

No other player is offering the other side at your price yet. You can wait, take the best price available, or cancel the unmatched part.

Do I pay commission on losing bets?

No. Commission is charged only on net winnings from a market.

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