Exchange or Bookmaker? Compare the Price, the Fee and the Limit
One match, three sets of prices, and a fee that can flip the comparison. You back the cheaper-looking screen, and your statement later says it was not.
Neither wins every time, so ask three questions in order. The price: a bookmaker builds its margin into every price, while an exchange price is another customer's offer and carries no bookmaker margin. The fee: Betfair Exchange takes a slice of the net winnings from each market you win, which can turn a better price into a worse one. The limit: a bookmaker's own rules decide which stakes it takes, while an exchange bet can only meet offers already waiting, up to your balance and Exposure Limit. The ledger below shows the fee flipping the result.
Compare the price
Every price is a probability in disguise. Divide 100 by a decimal price and you get the share of the result it implies: 100 ÷ 2.25 is 44.44%. Add the shares for every outcome; anything above 100% is the overround.
Take one invented three-way match, home, draw and away, and three invented sets of prices (every number here is made up). Bookmaker A offers 2.25 / 3.20 / 3.45: 44.44% + 31.25% + 28.99% = 104.68%, an overround of 4.68 points. Bookmaker B, with tighter prices, offers 2.35 / 3.20 / 3.55: 42.55% + 31.25% + 28.17% = 101.97%, or 1.97 points. The exchange's best back prices, before any fee, are 2.38 / 3.20 / 3.58: 42.02% + 31.25% + 27.93% = 101.20%, or 1.20 points.
Tidy staircase. It is not a finding: the order of the bars belongs to the invented prices.
On an exchange the 1.20 points are only the gap between the best back prices on offer, not a cut anyone keeps. Betfair takes its fee afterwards, out of the net winnings of a market you win, and the section that explains exchanges from scratch runs that sum. What happens between an offer and a match follows one offer from placing to settling.
In an undated article, Pinnacle says its margin on a Premier League home-draw-away market is 2% and that it charges no fee on winning bets. What sharp Asian books say about their margins keeps such claims beside their caveats. Real prices need a real check: test any market's prices for the margin inside them.
Compare the fee
Now the invoice. The overround is baked into the price, so it is paid on every bet, winners and losers alike. Betfair's exchange fee keeps a different calendar: its terms charge it on the net winnings of each market, so a market you lose costs no fee and a market you win costs a slice of the profit.
Against Bookmaker A the exchange wins at all three example rates: £50.00 - £37.70 = £12.30 at 2%, £50.00 - £42.68 = £7.32 at 5% and £50.00 - £45.17 = £4.83 at 6.5%. Its break-even rate is about 9.4%, from 1 - 1.25 ÷ 1.38.
Against Bookmaker B it wins by £38.00 - £37.70 = £0.30 at 2%, then loses by £42.68 - £38.00 = £4.68 at 5% and £45.17 - £38.00 = £7.17 at 6.5%. That break-even is about 2.2%, from 1 - 1.35 ÷ 1.38.
Thirty pence across eight bets is not a reason to open an account anywhere; at a gap that thin I would keep the tighter bookmaker price.
The 2%, 5% and 6.5% are examples, not anyone's account rate: 2% is the Basic package example on Betfair's charges page, and 5% and 6.5% are Market Base Rates in an archived help image, before any discount, so which rate a customer in your country pays is the first thing to look up in the current terms. A small share of very profitable accounts also meet the weekly fee aimed at big winners, which the ledger leaves out. Other exchanges have their own rates and country lists, and which rival exchange is worth opening, and what it charges weighs them.
The cheapest price is the one you can actually stake.
Compare the limit
A bookmaker stands against you, so its own rules decide what it accepts. Betfair's Sportsbook Rules, one bookmaker's rulebook and no more, keep Betfair's right, at its sole discretion, to decline some Sportsbook bets or to cut stakes back. The case where Betfair itself is the bookmaker sets them beside the Exchange's rules; any other bookmaker has its own to read.
On an exchange the stake meets offers first. A stake can only meet offers that are already queued, and clause 18.16 of Betfair's terms caps a bet at the smaller of two figures, the balance shown as Available to Bet and your Exposure Limit. Why a thin market leaves part of a stake unmatched has the mechanics. In the terms we read for the exchange there is no clause of that kind about stakes, but clause 13.4 lets Betfair end an account without stating a reason, on written notice of 14 days or more. Both clauses come from an archived copy of Betfair's terms: check the current version.
Payout caps are a separate ceiling, written into some venues' rules, and who caps a win, bookmaker or exchange covers them venue by venue.
Pinnacle says it never turns away a customer. Its terms, however, let it decline, restrict, cancel or cap any bet whenever it chooses, for any reason at all, and both sit on Pinnacle's own pages. I would plan around the second. The same terms shut out residents of a long list of countries, Germany, France, the USA and the UK among them, so read which countries Pinnacle's terms exclude and check your local law first.
The three side by side
The bookmaker column is a definition, not a survey; the others come from Betfair's terms and Pinnacle's own pages. Check the current terms.
| What differs | The bookmaker model, by definition | An exchange, by Betfair's terms | Pinnacle, by its own pages |
|---|---|---|---|
| Who takes the opposite side | The bookmaker: it fixes the price and bears the risk. | Another customer; Betfair describes itself as a facilitator, except in a few limited cases. | The book itself, since Pinnacle is a sportsbook. |
| Where the cost sits | Inside the price, as overround. | Outside the price: a charge on the net winnings of a market. | Inside the price. It says the margin is thin and that it charges no fee on winning bets. |
| When you pay | On every bet, win or lose. | Only in a market where you finish with net winnings. | On every bet: it says it applies its margin to every market it posts. |
| Who can refuse or cap a stake | The bookmaker, under its own rules; Betfair's Sportsbook Rules, for one, let Betfair cut stakes back. | No clause of that kind in the terms we read, though Betfair can end an account after 14 days' notice. | Its terms let it decline, restrict, cancel or cap any bet. |
| What runs out on a big bet | Whatever its own rules accept. | Offers queued on the other side, and a cap set by your Available to Bet balance or Exposure Limit. | We found no maximum stake on its official pages. |
Who each one fits
A bookmaker's price
A modest stake at a tight price, with no fee line on the statement and no queue for a match.
You keep meeting its stake ceiling, or you have never worked out the overround inside its prices.
An exchange
Someone who compares net prices, is content to wait until another customer takes the offer, and accepts Betfair's fee on every market won.
You want the whole stake filled at once, bet in thin markets, or have never placed an exchange bet: how a first Betfair bet is placed comes first.
Strengths
- The price carries no bookmaker margin.
- On Betfair, the fee applies only to a market where you finish ahead.
- You can lay a result as well as back it.
Limits
- A small price gap can vanish: against invented Bookmaker B, a fee above about 2.2% erases it.
- A big stake can go partly unmatched in a thin market.
- Betfair may end an account with 14 days' written notice.
Pinnacle
Someone who wants the margin to be the whole cost, with no fee on a win by its own account, and who lives where its terms accept residents.
Its terms exclude your country, or you need a stake ceiling written down in advance.
My order, then: run the overround sum on every price you can see, stake small amounts wherever the ledger says the net cost is lowest, and keep the exchange for a stake larger than a bookmaker's own rules allow, where the first ceiling is the depth of the market (Betfair can still end an account on notice, and the weekly fee still applies).
Where brokers fit
A broker is a route to a venue, not a fourth column in the table above. What a broker sells is a separate service under its own contract, with a country list and ID checks of its own before any withdrawal, and does not alter which countries Betfair or Pinnacle exclude. Betfair says verification comes before a withdrawal. Who lists which venue, and the catch that comes with each sets the brokers side by side. If getting onto Betfair is your first problem, the routes onto Betfair, and what each one asks of you lays them out in order.