Home » Round Robin Calculator: Free Parlay Round Robin Tool

Round Robin Calculator

Use this free round robin calculator to turn a handful of picks into a spread of smaller parlays. Enter your number of selections, how you want to combine them, the odds per leg, and your stake, and the tool shows how many parlays you are placing, your total stake, and the payout if every leg wins. It works with American or decimal odds.

Round Robin Calculator
Enter your picks, how to combine them, the odds and your stake.

What Is a Round Robin Bet?

Round robin calculator: turn picks into a spread of parlays

A round robin bet takes several picks and automatically splits them into every smaller parlay of a size you choose. Instead of one all-or-nothing parlay, you spread your action across many, so a single loss no longer busts your whole ticket. The round robin calculator above shows exactly how many parlays you are creating, what it costs, and what it pays if everything hits.

How to Use the Round Robin Calculator

Choose your odds format and the odds per leg, set how many selections you have, and pick how to combine them, such as 2-team or 3-team parlays. Enter your stake per parlay and the calculator returns the number of parlays, the odds and payout of each, your total stake, and the payout if all of your legs win. Change any field and the numbers update instantly.

Worked Example

Say you have four picks at -110 each and you run a round robin by 2s at $10 per parlay. Four picks combined two at a time make six parlays, so your total stake is $60. Each 2-team parlay at -110 pays about +264, or $36.45 on a $10 stake. If all four legs win, all six parlays cash for a total return of $218.68, a profit of about $158.68. Lose one leg and several parlays still cash.

Round Robins vs Teasers

A round robin spreads your picks across many parlays to survive a loss, while a teaser lets you move the point spread or total in your favor across a parlay in exchange for a lower payout. Both are ways to shape parlay risk. Round robins trade some upside for resilience; teasers trade payout for a safer number. Many bettors use round robins for moneyline and spread slates and teasers for key-number football spreads.

Free Printable Round Robin Worksheet

Want to map out a round robin by hand? Download the free printable round robin worksheet to list your picks and odds, choose your combine size, and work out the number of parlays, total stake, and payout step by step.

Download the Round Robin Worksheet (PDF)

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Round Robin Calculator FAQ

What is a round robin calculator? A round robin calculator works out how many parlays your picks create, the total stake, and the payout when you combine several selections into every smaller parlay of a chosen size.

How many parlays are in a round robin? It is the number of combinations, written N choose k. Four picks by 2s make 6 parlays, five picks by 2s make 10, and five picks by 3s also make 10.

Is a round robin better than a parlay? A round robin costs more because you place many bets, but it can still cash if one or two picks lose, while a single parlay needs every leg to win. It trades some upside for resilience.

What is a round robin by 2s? Combining your picks two at a time, so every possible pair becomes its own 2-team parlay. It is the most common and most forgiving round robin format.

What is the difference between a round robin and a teaser? A round robin spreads picks across many parlays, while a teaser adjusts the spread or total in your favor on a single parlay in exchange for a smaller payout. They manage parlay risk in different ways.

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Will Lewis Editor, Author
Will Lewis has covered sports for over 18 years, specializing in bracketology, tournament predictions, and in-depth analysis across college hoops, NFL, NBA, NHL, MLB, and more. March Madness is his favorite season, fueling his quest for perfect brackets before diving into pro playoffs. A lifelong Kentucky Wildcats fan, Bengals supporter since the Joe Montana era, and now a Padres devotee, Will delivers reliable, fan-first insights at Sports Brackets. Connect on X or comment. He loves talking brackets and more.