Best betting exchanges

Backing and laying in practice

On an exchange, you can “back” an outcome just like a normal bet, or you can “lay” it. Laying means you are betting that something will not happen. When you lay a bet, you are effectively acting as the bookmaker.

If you lay a bet, you must have enough money in your account to pay the “backer” if they win. This is called your liability. For example, if you lay a bet for £10 at odds of 5.0, your liability is £40. Always check the liability figure before you confirm your bet, as it can be much higher than your stake.

Commission and liquidity checks

Exchanges do not build a profit margin into the odds. Instead, they charge a commission on your net winnings. This is usually a percentage between 2% and 5%.

When choosing an exchange, check these two factors:

• Commission rates: A lower rate helps your long-term returns. Some platforms offer a 2% “basic” tier, but this may exclude you from other promotions.
• Liquidity: This is the amount of money waiting to be matched in a market. If a market has low liquidity, you might not be able to get your full stake “matched” at the price you want. Popular events like Premier League football have high liquidity, while niche sports may be harder to trade.

Risks of in-play exchange betting

Betting while a match is live is faster on an exchange. Prices move every second, and this creates specific risks:

• Unmatched bets: If the price moves while you are placing your bet, it may stay “unmatched.” You must decide whether to cancel it or leave it up in the hope the price returns.
• Liability spikes: In-play odds can fluctuate wildly. If you lay a team at high odds and they suddenly score, your potential loss remains high until you trade out.
• The “Keep” option: Check your settings for what happens to unmatched bets when an event goes live. You can usually choose to have them cancelled or kept live.

When to use a traditional bookmaker instead

Exchanges often provide better value, but they are not always the best choice. A traditional bookmaker is usually simpler if:

• You want multiples: While some exchanges offer “multiples,” traditional bookies are better for complex “Bet Builders” or “Lucky 15s.”
• You want promotions: Traditional bookies offer “Best Odds Guaranteed” on racing or “Early Payout” offers that exchanges do not match.
• You need speed: If you just want to place a quick bet without checking if there is enough liquidity to match your stake, a standard bookmaker is more straightforward.