When do 4-way arbitrage bets occur?

When a market splits into four outcomes — for example certain Asian handicap lines, combined result groups, or four-way correct-score buckets across different bookmakers.

Is a 4-way arb harder to find?

They are rarer than 2-way or 3-way arbs, but they exist whenever the four best prices together give a sum of inverses below 1.

Can I mix bookmakers?

Yes. You will normally take each of the four prices from whichever bookmaker offers the most, then enter them all here.

4-Way Arbitrage Calculator | Surebet Calculator 4 Way

V =

Ways:

Enter the odds and your amount — stakes and profits update in real time. Tip: use the optional note field next to each row to label the outcome (e.g. a team, 1X, Over 2.5 or a score).

Profitability = 0%

	Odds	Bet	Profit

4-way arbitrage explained

A 4-way arbitrage covers a market with four possible results. These show up in markets such as some Asian handicap lines, grouped result markets, or four-bucket correct-score splits. With four outcomes there is more to balance, but the principle is identical: if the four best prices give a sum of inverses below 1, the profit is guaranteed.

How the stakes are balanced

The calculator computes V = 1/odd₁ + 1/odd₂ + 1/odd₃ + 1/odd₄, then divides your stake so each outcome returns the same payout. Enter all four odds above and adjust the amount — the per-bet stakes and profit update instantly.

Real 4-way markets

Four-outcome markets are less common than 1X2, but they turn up in:

Tennis correct set score (best-of-3): the four scorelines — Player A 2–0, A 2–1, B 2–1, B 2–0
Asian handicap quarter lines priced differently across bookmakers
Half-time/full-time partial groupings and four-band correct-score markets

Worked example (4 outcomes)

Best set-score prices across bookmakers: A 2–0 @ 3.50, A 2–1 @ 4.20, B 2–1 @ 4.50, B 2–0 @ 4.00. Then V = 1/3.50 + 1/4.20 + 1/4.50 + 1/4.00 = 0.286 + 0.238 + 0.222 + 0.250 = 0.996 — just under 1, so it's a (thin) surebet. Enter the four prices above and the calculator splits your stake so every scoreline returns the same profit.

Learn more about arbitrage betting

New to this? Read our full guide on what is arbitrage betting, or see the arbitrage betting formula explained step by step with worked examples. Odds in a different format? Use our odds converter to switch between decimal, fractional, American and implied probability.

Frequently asked questions

When do 4-way arbitrage bets occur?: When a market splits into four outcomes — for example certain Asian handicap lines, combined result groups, or four-way correct-score buckets across different bookmakers.
Is a 4-way arb harder to find?: They are rarer than 2-way or 3-way arbs, but they exist whenever the four best prices together give a sum of inverses below 1.
Can I mix bookmakers?: Yes. You will normally take each of the four prices from whichever bookmaker offers the most, then enter them all here.