Short answer: Betfair Exchange is the strongest exchange for trading, and our rating is 4.4 out of 5. No competitor matches its liquidity, especially in UK and Irish horse racing, and its open API supports the best third-party trading software. The trade-offs: the 5% standard commission is higher than Smarkets and Betdaq on many markets, the Premium Charge hits the most profitable accounts hard, the native website and app are not built for trading, and customer support is slow. Use Betfair as your main account; Smarkets or Betdaq are useful second accounts where their commission is lower.
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Exchange Overview
Betfair Exchange launched in June 2000 and brought peer-to-peer betting to the UK: punters bet against each other rather than against a bookmaker. It is the largest betting exchange in the world and is owned by Flutter Entertainment, which also owns Paddy Power, FanDuel and Sky Bet.
UK and Ireland users access it at betfair.com. Australian users use Betfair Australia, which has slightly different commission and market availability.
The product works as it always has: you place back and lay bets on a central order book, Betfair matches them and takes commission on net winnings.
Commission Structure
Standard Commission (Net Winnings)
Betfair charges commission on net winnings per market, not on each bet. Back a horse for £100 and lay it for £100 at breakeven, and you pay nothing. Make £50 profit in a market, and you pay commission on that £50.
The standard UK rate is 5%, but many markets are lower:
| Market | Commission |
|---|---|
| Major football (Premier League, Champions League) | 2% |
| Horse racing (most UK/IRE) | 5% |
| Tennis (Grand Slams) | 3% |
| Cricket (international) | 3–4% |
| US sports | 5% |
Check the Market Base Rate (MBR) on the market page before trading. Over high trade volumes, low-commission markets make a real difference to profit.
Premium Charge
The Premium Charge (PC) is an extra charge on consistently profitable customers. It applies when you meet all three criteria:
- Your account is in profit over its lifetime
- You have generated more than 250 Betfair points in the past 60 weeks
- Your total commission paid is less than a set "charge rate" of your gross winnings
The standard rate is 20%, with higher tiers at 40% and 60% for the most profitable accounts. It is costly if you reach it, but only a small minority of accounts do. If you are starting out, it should not shape your strategy.
Betfair Discount Rate
Your Betfair Score, which rewards consistent volume over time, earns a personal discount of up to 60% on standard commission, taking 5% down to as low as 2%. You can check your score in your account settings.
100 scalp trades: £200 gross profit
Markets and Liquidity
Liquidity is Betfair's biggest advantage. The figures below are typical amounts matched.
| Market | Typical matched |
|---|---|
| Major UK/IRE horse races (Win market) | £20–£80 million |
| Cheltenham Festival races | Often over £40 million per race |
| Moderate weekday race cards | £800,000–£2 million |
| Premier League Match Odds | £8–£15 million |
| Standard FA Cup tie | £2–£4 million |
| League 1 and below | £200,000–£600,000 |
| Wimbledon / US Open quarter-finals | £5–£10 million |
| ATP 250 semi-final | £300,000–£800,000 |
| Early rounds of minor tennis events | As little as £50,000 |
| Major American football games | £500,000–£2 million |
- Horse racing is the flagship market. Even weekday cards carry enough for serious scalping, and the final 10–15 minutes before the off is the busiest trading window.
- Football is deep at the top, but lower-league liquidity limits how much you can stake without moving the market.
- Tennis Grand Slams offer real in-play trading; early rounds of minor events are too thin for meaningful trading.
- Other sports: international cricket is very tradable, major golf is improving, greyhounds are fast and liquid, and US sports lack the depth of racing and football but suit moderate stakes on major games.
Not all markets are equally liquid
Lower-league football, minor tennis and niche sports can be too thin for trading. Check the money available at each price before placing large orders. For scalping, look for £50,000+ available at the current best prices. Swing trading can work in thinner markets if your stakes are small.
Software and Interface
Betfair's website and app are adequate for recreational betting but not designed for trading: a simple back and lay grid, open position management and a basic cash-out.
For trading you need third-party software. Betfair's open, well-documented API has supported trading tools for over 20 years. The main platforms:
- Bet Angel Professional: the market leader, most features, automation via Guardian, from £6/month
- Geeks Toy: fastest execution, cleanest ladder, preferred by scalpers, from £2/week
- Cymatic Trader: functional free tier, suits beginners who want no upfront cost
- BetTrader: fast and lightweight, good for scalping
Developers also build custom bots through the Betfair API, most often in Python, C# or Java. Access is free with an account; commercial distribution needs a Vendor licence.
Pros and Cons
- +Unmatched liquidity, especially in horse racing
- +Open API enables the best third-party trading software
- +No account restrictions: winners are not banned
- +Commission charged on net profit, not gross turnover
- +Discount Rate can reduce commission to 2%
- +24/7 markets across global time zones
- +Operating since 2000
- −Premium Charge adds 20% to 60% for the most profitable accounts
- −Native website not fit for trading; third-party software needed
- −Commission higher than Smarkets and Betdaq in many markets
- −Customer support is slow; complex issues take days
- −Some markets have very wide spreads off-peak
- −Mobile app inadequate for in-play trading
- −Volatility during system issues can cause significant loss
Alternatives Worth Considering
- Smarkets: flat 2% commission, better value if you are profitable on a 5% market. Liquidity is 15–25% of Betfair's, so books are thinner and orders at the top of the ladder are harder to match.
- Betdaq: 2% commission (0% during promotions), with better liquidity than Smarkets on Irish markets and greyhounds. Not worth it for UK horse racing or football.
- Using more than one: with accounts on several exchanges you can back where the price is best and lay on another. It takes more account management but can improve margins.
Verdict
Betfair Exchange is the dominant platform for exchange trading. Its liquidity lead is decisive, above all in horse racing, and its open API and mature software ecosystem have no equal.
The weaknesses are real but manageable. Standard commission is higher than competitors, though the Discount Rate rewards active traders. The Premium Charge is severe but affects few accounts. Support is poor but rarely needed for routine trading.
Keep your main account and most of your volume on Betfair, and use Smarkets or Betdaq as second accounts where their commission is lower on specific markets.
Ready to open an account?
The Betfair account opening guide covers the process in 8 steps, from registration to first deposit; it takes about 15 minutes including ID verification. New to exchanges? Read the start here guide first.