Calculator
Round Robin Calculator — Combined Parlay Payouts
A round robin automatically creates every possible parlay combination from a list of teams. For example, 4 teams "by 2" creates all 6 possible 2-team parlays. You don't need every team to win — partial hits still pay, unlike a full parlay.
Max payout assumes all teams win. Total stake is what you actually risk. The more combinations, the more coverage — but also more total stake.
Find +EV legs for your round robin →How many teams or outcomes you want to include (minimum 2)
"By 2" creates every possible 2-team parlay; "by 3" creates every 3-team parlay, etc.
Amount wagered on each individual parlay combination
Assumes the same odds for every leg — adjust per leg in the Parlay calculator
How this works
Formula
combinations = C(n, k) ; total_payout = Σ stake × decimal_combo_i
Worked example
4-team round-robin by 2 = 6 two-leg parlays. At -110 each that's 6 × $364 max payout per $100.
FAQ
What's a round robin?
A round robin auto-builds every possible parlay combination from a list of teams. 'By-2' makes every 2-team parlay; 'by-3' makes every 3-team, etc.
Why use a round robin?
It reduces single-parlay variance. You don't need every leg to win — partial hits still pay.
Is a round robin +EV?
Not inherently — it inherits the vig of each leg. Best used when every individual leg is +EV.
How many combinations in a 5-team round robin?
By-2: 10. By-3: 10. By-4: 5. Total: 25 parlays from one ticket.
What about correlated legs?
Round robins multiply correlation effects. Use the parlay calculator's correlation toggle to size correctly.