Round robin calculator
A round robin splits your legs into every smaller parlay of the size you choose. With 4 legs and parlays of 2 legs that is 6 parlays; with 6 legs and parlays of 3 legs, 20. Enter American or decimal odds and each result.
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How it works
- Number of parlays = the number of ways to choose k legs from n: C(n, k). Total risk = that number × the stake per parlay.
- Each parlay pays the product of its legs' decimal odds if every leg wins; a push counts as odds of 1, a loss sinks that parlay only.
- A round robin spreads the risk across many small parlays, but every leg still carries the bookmaker's margin, and each parlay multiplies it: see what parlays really cost.
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