How is expected value (EV) calculated?

EV percent equals (bookmaker decimal odds × estimated true probability − 1) × 100. Sharkbetting estimates the true probability from the live exchange price (after commission), so EV % shows the edge you have versus a sharp market reference.

How is value betting different from matched betting?

Matched betting uses bookmaker bonuses and free bets and is mathematically risk-free per bet — you back at the bookmaker and lay at the exchange. Value betting does not lay off; it places only the bookmaker leg when the odds are higher than fair. Value betting carries variance on every bet but generates long-term profit when consistently applied without a bonus.

Why would a bookmaker offer odds with positive EV?

Bookmakers update their lines slower than the exchange in many markets, especially in lower leagues, smaller sports, props, or right after team news. Promotions, generosity in chosen markets, and price-leadership strategies also create temporary positive-EV offers.

Is value betting risky?

Each individual bet has variance — you can win or lose. The strategy works over volume and depends on accurately estimating the fair price. Bookmakers may also restrict accounts that consistently identify sharp prices, so use sensible stake sizing and account hygiene.

How do I use the Sharkbetting Value Betting scanner?

Open the Oddsmatcher at /app?mode=value, set your minimum EV (default 1%), pick the bookmakers you have accounts with, and sort by EV. Click through to the bookmaker via the affiliate link, place your stake, and let the long-term EV compound. Value Betting is now a mode of the same Oddsmatcher you use for matched betting — flip the toggle at the top of the page to switch between them.

Positive Expected Value

Value BettingFind positive EV bets

Q: What is value betting?

Value betting is the practice of placing bets only when a bookmaker's odds imply a probability lower than the true probability of the outcome. Over a large enough sample of bets with positive expected value (positive EV), you should expect to make a long-term profit even though every individual bet still has uncertain outcomes.

The complete guide to value betting and expected value. Learn how to spot mispriced bookmaker odds, compute EV correctly, and use the Sharkbetting scanner to do it at scale.

Open the Oddsmatcher in Value mode Betting calculators

Looking to lock in profits instead of riding long-term EV? The same page has a Matched Betting mode that hedges every bookmaker bet against the exchange. Read the Matched Betting guide.

What is value betting?

Value betting is the practice of placing only those bets where the bookmaker's odds imply a probability lower than the outcome's true probability. Every such bet has a positive expected value (EV) — meaning that, on average and over many bets, you make money even though any single bet can still lose.

This is the same edge sharp bettors and trading desks exploit. The Sharkbetting Value Betting scanner finds these offers automatically, comparing every bookmaker price against a live exchange-derived fair price and showing the EV % for each bet.

EV — the only number that matters

Every bet has an expected value. If EV is positive, the math is on your side. Sharkbetting computes EV per bookmaker offer using a live exchange-derived fair price.

Sharper than matched betting on volume

Matched betting is risk-free per bet but limited by bonus availability. Value betting compounds an edge that can be exploited every day across thousands of markets.

Fair price from a real exchange

We use the Betfair lay-side price (commission-adjusted) as the fair-market reference. It moves in real time and reflects what informed bettors actually pay.

Why bookmakers misprice odds

Bookmakers chase a balanced book, react slower than exchanges to news, run promotional periods, and operate in markets where they have less information. Each of these creates a window where their price is genuinely higher than fair value. The Value Betting scanner finds those windows in real time.

Ready to find positive-EV bets?

Open the live scanner and start tracking the edge.

Open Oddsmatcher in Value mode Or read the Matched Betting guide