ROUND ROBIN CALCULATOR

1. What is a Round Robin Calculator?

A round robin calculator breaks a group of betting selections into multiple smaller parlays and calculates how much the full round robin will cost and potentially return.

The calculator shows:

• Number of parlay combinations
• Total stake required
• Potential payout
• Potential profit
• American or decimal odds

It is also commonly called a round robin parlay calculator or round robin payout calculator.

2. What is a Round Robin Bet?

A round robin bet takes several selections and creates multiple smaller parlays from them.

For example, if you choose four teams and create every possible 2-leg parlay, the round robin produces six separate bets.

Unlike a standard four-leg parlay, one losing selection does not necessarily cause every bet to lose because each combination is settled separately.

However, a round robin also requires multiple stakes, so your total outlay is usually higher than placing one standard parlay.

With this parlay, if just one team loses, your entire bet will lose and you will come away with nothing. However, if you instead choose to place a round robin bet, this parlay would be broken into 6 smaller parlays*.

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What Our Experts Say

"Round robin bets spread your selections across multiple parlays, so one losing pick doesn’t necessarily wipe out every combination. The trade-off is that you’re placing more individual bets and usually risking a larger total stake."

- Chris Allen, Sports & Matched Betting Expert at ProfitDuel

That way, even if any one team loses, you're still in with a chance of coming away with overall profits (see below).

This bet type gets its name from a tournament type of the same name - a round robin tournament - where every team plays every other team in its group at least once.

*The above example assumes a parlay size of 2 (see next section for what this means).

3. How Many Bets Are in a Round Robin?

The number of combinations increases quickly as you add more selections. ProfitDuel's calculator works this out automatically so you can see your total number of bets and total stake before placing the round robin.

4. Round Robin Calculator Inputs & Outputs

Before we get into the details of how to use a round robin bet calculator (section 4), it can be useful to first understand what each input and output on the calculator means.

Round Robin Calculator Inputs

• Stake: This is the stake you wish to place on each parlay in your round robin.
  
  
• Number of Games: This is the number of games you wish to include in your bet. If your round robin included four different teams, you would enter 4.
  
  
• Parlay Size: This is the number of selections that would be included within each of your round robin's smaller parlays. The higher this number, the higher the risk and the higher the potential payout (the most common parlay size is 2).
  
  
• Include Smaller Parlays: This can be toggled to yes or no and is only applicable for parlay sizes over 2. If ‘yes’ it will include all possible parlay combinations below your parlay size. This will increase your overall stake, risk and potential winnings.
  
  
• Stake Type: This refers to whether you want the stake you entered to be the total stake you wish to bet across all bets (‘Total Combined Stake’), or whether it's the figure you wish to place on each bet in the round robin parlay ('Stake Per Bet').
  
  
• Game Odds: This is the sportsbook odds attached to each individual bet in your round robin (the default uses American odds, but you can toggle this to decimal odds at the top). The higher the ‘Number of Games’ the more odds rows will be added.

Round Robin Calculator Outputs

• Total Outlay: This is simply the total stake of your bets.
  
  
• Total Payout: This is the maximum win payout you could earn from your round robin provided all bets win.
  
  
• Simulated Result: Also known as the situational result, this is the potential profit from your bet.

Round Robin vs. Standard Parlay: When to Choose What

5. Round Robin Betting Example

Suppose you select four NFL teams and choose 2-leg parlays.

A round robin creates every possible pair:

1. Team A + Team B
2. Team A + Team C
3. Team A + Team D
4. Team B + Team C
5. Team B + Team D
6. Team C + Team D

That gives you six separate parlays.

If you stake $10 per bet, your total outlay is:

6 × $10 = $60

The calculator then uses the odds for each selection to calculate the potential payout and profit across those six parlays.

6. Round Robin vs Parlay: What’s the Difference?

You may choose a round robin bet over a standard parlay when you want to hedge your bets or spread risk across multiple combinations of events.

Why? Because selecting multiple teams and creating various parlay combinations from those teams allows you to cover more outcomes than a single parlay, increasing your chances of winning at least one and reducing your chances of losing overall.

However, choosing a round robin comes at the cost of lower potential payouts compared to a standard parlay (where all selections must win for the bet to pay out).

As a result, round robins are useful when you're uncertain about the outcome of individual matches or want to minimize losses if one or two selections fail. But, if you're particularly confident that all of your selections will win, a standard parlay may be the preferable option.

Tip: If you are looking to place a standard parlay, check out the parlay calculator to test the best combinations.

 A standard parlay is simpler and can offer a larger payout from one stake. A round robin spreads your selections across multiple combinations, which can reduce the impact of one losing pick but increases the total amount wagered. 

7. Why Use a Round Robin Calculator?

A round robin calculator helps you:

• See exactly how many parlays your selections create
• Calculate the total stake before betting
• Compare different parlay sizes
• Estimate potential payout and profit
• Understand how removing or adding selections changes the bet

It does not predict which selections will win or guarantee that a round robin will be profitable.

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What Our Experts Say

"Using a round robin calculator isn’t just about convenience. It’s a bankroll optimization tool that lets you balance risk and reward with precision, tailoring your strategy to fit the odds, parlay size, and personal confidence in your picks."

- Casey Halpern, Sports Betting Expert at ProfitDuel

8. Round Robin Betting Limitations

Round robins can offer more flexibility than a standard parlay, but there are trade-offs:

• Multiple parlays can create a much larger total stake
• Some combinations can still lose
• Returns may be lower than a winning full parlay
• More selections make the bet increasingly complex
• Sportsbook rules for pushes, voids and correlated selections can vary

Always check your total outlay, not just the stake shown for each individual parlay.

9. Get Started with Matched Betting

If you're tired of spending forever trying to find the best round robin bets, just to come away with little more (or even less!) money than when you started, consider matched betting.

Matched betting process (simplified)

Involving strategically converting sportsbook promotions (such as bonus bets) into profits, matched betting is a tried and tested method of locking in profits from sports betting. And with a raft of global publications including The Guardian and Vice having their say on this popular side hustle, over the last decade its popularity has skyrocketed.

At ProfitDuel, we're the experts in the field. We've already helped more than 500,000 users in the US and Europe add to their monthly income using this technique. How? By providing access to our expert software, simple-to-follow strategies, and industry-leading customer support.

So why keep risking your time and money on sports betting? Come and try the ProfitDuel trial.

Bonus: We've even included a welcome offer that can help you bank your first profits, and a welcome guide you can access here to walk you through the five steps involved.

What is ProfitDuel?

ProfitDuel’s free betting calculators make it easy to execute strategies like matched betting, arbitrage, and EV betting with precision. By simplifying complex calculations into instant results, our tools help you make fast, confident, profit-driven decisions every time you place a bet.

Trusted by over 500,000 users across the USA and UK, ProfitDuel is the smart betting toolkit built to help you maximize profit and minimize risk. We equip our members with real-time data, cutting-edge tools and expert support to help our members make profits through strategy, not luck.

Centered around proven techniques like matched betting, arbitrage betting, and value betting (EV betting), our betting calculators, betting tools and live market data make it easy to spot hidden edges and turn them into profit. From converting sportsbook promos and casino bonuses into cash to maximizing your long-term winnings with using EV software, we’ve got you covered.

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FAQs on the Round Robin Calculator

How many bets are in a round robin?
It depends on the number of selections and the parlay size. For example, four selections arranged into every possible 2-leg parlay create six separate bets.

How is the total stake on a round robin calculated?
If you choose stake per bet, multiply the number of parlay combinations by your individual stake. Six bets at $10 each would require a total stake of $60.

What happens if one round robin pick loses?
Only the parlays containing that selection lose. Other combinations can still win if all of their legs are successful.

What is the difference between a round robin and a parlay?
A standard parlay normally combines every selection into one bet. A round robin creates several smaller parlays from the same group of selections.

Can you do a round robin with four teams?
Yes. For example, four teams arranged into 2-leg parlays create six combinations.

Does a round robin guarantee profit?
No. A round robin simply spreads selections across multiple parlays. You can still lose some or all of your total stake.

Can I use American odds?
Yes. ProfitDuel's calculator supports American and decimal odds.