What live arbitrage odds are
Live arbitrage — also called in-play arbitrage — is placing bets on every outcome of an event that is already underway, across bookmakers whose live prices have momentarily diverged, so the combined stake locks a guaranteed margin whatever the final result. The mechanic is identical to pre-match arbitrage: back all outcomes at prices that, together, cost less than the guaranteed return. The difference is timing.
In-play odds move continuously as the game unfolds — a goal, a red card, a break of serve, or a momentum swing forces every book to reprice. Because books react at different speeds, one operator can lag the market while another has already adjusted. That brief disagreement is a live arbitrage odds opportunity, and it can vanish in seconds.
In-play live betting arbitrage odds, explained
A live arbitrage scanner monitors in-play prices across many books at once and flags the moment the numbers cross into a guaranteed-margin position, with the stake split for each side. You then place both legs as fast as possible before the window closes. The faster your tooling and execution, the more of these short-lived edges you can actually capture.
Why to use live arbitrage odds
The headline reason is margin. The pre-match market is relatively efficient, so pre-match arbs tend to sit in the 1–3% range. In-play repricing is messier and faster, so live arbitrage windows frequently carry wider margins — and there are simply more of them across a single match, because every significant event resets the prices.
Live arbing also expands when you can bet. Instead of waiting for pre-match windows, you can find opportunities throughout a game, across many concurrent fixtures. For bettors who can act quickly — or who automate placement via an API — live arbitrage is the larger opportunity by volume and by average edge.
The trade-off is difficulty: shorter windows, moving prices, and the risk of being left one-sided if a market suspends mid-bet. Live arbitrage rewards preparation, fast tools, and a tested process — which is why most arbers build on pre-match first, then step up to live.
Platforms to get live arbitrage bets
Three reviewed routes to in-play arbs — a free US in-game scanner, an iOS and Android push-alert app, and a full global scanner with API access.
US Live Arbitrage Alerts
OddsShopper surfaces in-game (live) arbitrage and positive-EV opportunities across US sportsbooks and is a strong free starting point. Live arbs are placed manually — you act on the alert and put both legs down yourself — so it suits bettors who watch the screen during play. There is no automated placement, which keeps it simple but demands fast execution while the in-play window is open.
Live Odds Arbitrage Mobile App
Over 400+ books scanned for in-play odds — live, before the line moves. Sub-second refresh puts you instantly on new opportunities. Prediction markets — Polymarket, Kalshi, PredictIt and more — are fully covered alongside traditional sportsbooks. The iOS and Android app sends push notifications the moment a qualifying arb appears, so you never miss a fast-closing in-play window.
International Live Sports Arbs
BetBurger runs a dedicated live scanner across a wide set of global bookmakers and exchanges, and exposes an API on higher tiers. That makes it the more advanced live option: place manually from the live feed, or build automated/agentic placement on top of the API for the fastest reaction to in-play price moves. Coverage and limits vary by region — verify your books during the free trial.
Want to automate live placement? See the API betting guide for brokers and betting APIs, and the odds API guide for the data side.
Live betting arbitrage questions and answers
What is live arbitrage betting?
Live (in-play) arbitrage is placing bets on opposing outcomes of an event that is already in progress, across bookmakers whose live prices have diverged, so the combined position locks a margin regardless of result. It works the same way as pre-match arbitrage but on fast-moving in-play odds.
How is live arbitrage different from pre-match arbitrage?
Pre-match arbs sit on events that have not started, so the window can last hours. Live arbs appear and close in seconds as in-play odds swing, which means they are higher-frequency and often higher-margin, but they demand much faster execution and tighter tooling.
Why do live arbitrage opportunities have bigger margins?
During play, bookmakers reprice constantly and at different speeds — one book lags a goal, a break of serve, or a momentum shift while another has already moved. Those brief disagreements create wider gaps than the efficient pre-match market, so live arbs can carry larger margins than pre-match ones.
Do I need special tools for live arbitrage?
Effectively yes. Live windows are too short to scan manually, so you need a live arbitrage scanner that monitors in-play prices in real time. OddsShopper covers in-game arbs for manual placement; BetBurger runs a live scanner with an API for faster or automated reaction.
Can I automate live arbitrage betting?
Partly. Scanners like BetBurger expose an API you can build automated alerting or placement on top of, which is the fastest way to react in-play. Full automated placement also needs a betting/broker API and careful error handling. OddsShopper is manual-only. See our API betting guide for the placement side.
Is live arbitrage harder than pre-match?
Yes. The odds move while you are placing, books can suspend markets mid-bet, and a slow second leg can leave you one-sided. Live arbitrage rewards speed, preparation, and discipline — most bettors build confidence on pre-match arbs first, then move into live.
What sports are best for live arbitrage?
High-event, fast-scoring sports with deep in-play markets work best — soccer, tennis, basketball, and American football all reprice frequently during play. Tennis is popular because the point-by-point structure creates constant live price movement across books.
What is the main risk of live arbitrage?
Execution risk. Because odds change second to second, the price can move or a market can be suspended between placing your first and second leg, leaving you exposed on one side. Stale odds and partial fills are the core live-arb risks, which is why fast tools and a tested process matter.
Will bookmakers limit me for live arbitrage?
Soft books limit profitable accounts regardless of whether the bets are pre-match or live. Live arbing can attract attention faster because of stake patterns during play. Use round stakes, spread volume across accounts, and mix in recreational bets to extend account lifespan.
Is live arbitrage betting guaranteed profit?
No. Arbitrage describes a theoretical margin under ideal conditions; live execution adds real risk from moving odds, suspensions, and partial fills. This page is educational and is not betting advice — only stake what you can afford to lose, and check your local laws and age limits.
Can beginners do live arbitrage?
It is possible but not recommended as a first step. The speed and the risk of being left one-sided make live arbing demanding. Beginners are better served learning the workflow on pre-match arbs, then using a live scanner like OddsShopper or BetBurger once their execution is reliable.
How fast do live arbs close?
Often within seconds on liquid in-play markets, sometimes faster than you can place both legs manually. That is why a real-time scanner — and, for the quickest reaction, an API — is essential for consistent live arbitrage rather than occasional luck.