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How to Find Surebets: A Step-by-Step Guide

2026 · 8 min read

Finding a surebet means spotting the moment when the best odds across different bookmakers combine to guarantee a profit. Here is the exact process, step by step.

Step 1: Cover several bookmakers

An arb needs at least two bookmakers with diverging odds. The more accounts you have access to, the more opportunities you'll see. Sharp books (which set efficient prices) and softer books (which are slower to adjust) together create most arbs.

Step 2: Pick liquid markets

Start with two-outcome markets — tennis, basketball moneylines, over/under totals. They are simpler to arb than three-way football markets because there are fewer legs to place and less can go wrong.

Step 3: Compare the best odds per outcome

For each outcome, note the highest odds available across all your bookmakers. You are not looking at one bookmaker's full set of prices — you are cherry-picking the single best price for each side from wherever it happens to be.

Step 4: Check the arb index

Add up 1 ÷ odds for every outcome. If the total (the arb index, L) is below 1.0, you have a surebet. For example, 2.15 and 2.05 gives 0.465 + 0.488 = 0.953 → a ~4.9% arb.

An arbitrage calculator does this instantly and also tells you the stake split, so you don't have to compute by hand.

Step 5: Calculate the stakes

The point of an arb is that every outcome returns the same amount. That only happens if you size each bet correctly. Put too much on one side and you turn a guaranteed profit into a gamble. Always use a calculator and double-check the numbers before placing anything.

Step 6: Place fast — and place the riskier leg first

Arbs disappear quickly because odds move. A common tactic is to place the bet at the softer bookmaker first (the one most likely to change its price), then confirm the sharper book afterward. If the soft odds are gone before you place, you avoid being stuck with half an arb.

Step 7: Round your stakes

Precise amounts like 47.38 can flag your account as an arber. Rounding to clean whole numbers makes your betting look natural. Good calculators show both the exact and rounded stakes, and warn you if rounding eats too much of the margin.

Common mistakes to avoid

• Betting different markets by accident (e.g. "to win" vs "to win including overtime").
• Ignoring maximum stake limits at one bookmaker.
• Chasing tiny arbs where fees or rounding wipe out the profit.
• Forgetting that the second leg's odds may have moved — always re-check before confirming.

Build a routine

Profitable arbing is about consistency, not luck. Scan regularly, act quickly, keep records of what you placed and where, and stick to clean stakes. Over time the workflow becomes second nature and you spend less time per opportunity.

Try the free arbitrage calculator

Enter your odds and get the exact stake split in seconds.

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