Arbitrage, value betting and matched betting
Three ways to use more than one book: how each works, what it relies on and how books react.
Arbitrage (surebets), value betting and matched betting all use more than one bookmaker and all lean on maths. They are different things, with different risks and different reasons books stop you.
At a glance
| Arbitrage (surebets) | Value betting | Matched betting | |
|---|---|---|---|
| What you do | Back every outcome at different books, at prices whose implied probabilities add up to less than 1 | Back one outcome where the price beats the fair odds | Back a free bet or bonus at a book and lay the same outcome at an exchange |
| What it relies on | Books disagreeing at the same moment | Your probability being better than the book's | The bonus being worth more than the cost of covering it |
| Result per bet | Fixed, if every leg stands | Varies: wins and losses, positive on average | Mostly fixed |
| Main risk | A price moving between legs, voids, limits | Your estimate being wrong, long losing runs | Running out of bonuses, terms |
| How books react | Limits, sometimes quickly | Limits, usually slower | Bonuses withdrawn, "gubbed" accounts |
Arbitrage
Two or more books price the same event differently enough that backing every outcome, in the right proportions, returns more than the total stake whatever happens. Margins are small (most of ours are under 2%) and they don't last: the median confirmed surebet in our data is gone in 90 seconds. It needs no prediction, but it needs speed, funded accounts at many books, and every leg checked at its book. See What is a surebet?.
Value betting
You back one outcome when the odds are higher than its real chance warrants: positive expected value. The "real chance" usually comes from a sharp book's price with the margin removed (no-vig calculator). Each bet can lose; the edge only shows over hundreds of bets, and the swings are real. Stake sizing matters: see the Kelly criterion calculator.
Matched betting
You use a book's free bet or deposit offer and cover it by laying the same outcome at a betting exchange, so the result doesn't depend on who wins. The value is the bonus; once a book's offers run out, so does the method. It depends on exchanges and on books still offering bonuses to you.
Which one does Arbistoteles do?
Arbitrage, prematch, across 10 crypto sportsbooks. We show a surebet as confirmed only after every leg is re-read at its book, and we flag legs priced far from the market instead of hiding them. We don't run value-betting models or matched-betting offers.
See it on real data
A free account shows up to 3 live surebets, each 0.99% or less, every leg re-checked at its book. No card needed.