What is a Surebet (Arbitrage Bet)?
Learn how surebets use price differences across bookmakers, how to calculate an arbitrage opportunity and what practical risks remain.
Definition
A surebet is a set of bets covering every possible outcome at prices that produce a theoretical profit regardless of the result.
How to identify one
Convert each best available price to implied probability and add them. If the total is below 100%, an arbitrage margin exists before fees and execution risk.
Example
In a two-outcome market, odds 2.10 on one side and 2.10 on the other imply about 47.62% each, or 95.24% in total. Stakes can be split to equalise the return.
Practical risks
Prices can change before both bets are placed, limits can differ, markets can have different settlement rules and accounts may be restricted. Currency and withdrawal costs also matter.
Not truly risk-free in practice
The mathematics can lock a margin, but execution, void rules and operational errors remain. Confirm that both bets cover the exact same event and settlement period.
Continue learning
- How to Read a Football Prediction
- What is Expected Value (EV) in Betting?
- What is Odds Movement?
- What is a Steam Move?
New to football predictions? Read our starting guide: How to Read a Football Prediction.