What Is Arbitrage Betting? (Arbing)
Arbitrage betting locks in a small guaranteed profit by covering all outcomes across different bookmakers. Here's how 'arbing' works and its real risks.
Arbitrage betting — 'arbing' — exploits differences in odds between bookmakers to guarantee a small profit whatever the result. It's mathematically risk-free in theory, but practically fraught. This guide explains how it works and why it's harder than it sounds, complementing how to use betting exchanges.
How arbing works
When different bookmakers disagree enough on a market, you can back every outcome at prices that together guarantee a profit — the combined implied probabilities add up to under 100%.
You stake proportionally across outcomes to lock in the same return whatever happens.
Why the edges are tiny and fleeting
Arbs are usually small (1-2%) and vanish fast as odds move — see how betting markets move. You need speed, multiple funded accounts and often paid software.
The margins rarely justify the effort for casual bettors.
The real risks
Arbing is a fast route to being gubbed or restricted, because bookmakers spot it easily. Bets can also be voided or 'palpable errors' cancelled, leaving you exposed on the other leg.
So 'risk-free' is theoretical; execution risk is real.
Arbing vs value
Arbing locks in tiny sure profits but doesn't scale and gets you banned; value betting has variance but a bigger long-term ceiling. Most serious bettors focus on value and exchanges.
Treat arbing as a niche technique, not a get-rich scheme, and stick to UKGC-licensed bookmakers.
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Last reviewed 18 August 2026 · Written and fact-checked against our review policy and scoring methodology.
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