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Round robin calculator

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Count every parlay combination, total risk, maximum return, and a simulated result.

6 parlays

6 2-leg parlays at $10 risk $60; all legs winning pays $267.70. With one leg losing it pays $122.23.

Total risk: $60.00
Max payout: $267.70
Max profit: $207.70
Payout as marked: $122.23
Profit as marked: $62.23

Leg 1

Leg 2

Leg 3

Leg 4

Parlay size

Stake per parlay

Every combination of your legs at the parlay size, one stake each. Mark a leg Loss to see how the ticket settles.

How to use the round robin calculator
A round robin breaks a group of selections into smaller parlays. It costs more than one parlay but can still return money when some selections lose.
1Add all selections and their odds.
2Choose how many legs belong in each parlay.
3Set the stake per combination and review total risk and possible return.
Formula and assumptions
Number of parlays = n! / (r! × (n - r)!), where n is total picks and r is picks per parlay.
Each combination uses the same entered stake. Actual returns depend on which legs win and whether the sportsbook restricts correlated selections.
Questions
Answers about this free round robin calculator, sports betting odds, payouts, and the math behind each result.