Round Robin Betting Guide
Complete guide to round robin bets, how they work, and winning strategies
What is a Round Robin Bet?
A round robin bet is a series of smaller parlays created automatically from a larger list of your selections. Instead of betting one large parlay where all picks must win, a round robin breaks your picks into multiple smaller parlays.
Key difference from parlays:
- Traditional parlay: All picks must win, or you lose everything
- Round robin: Multiple smaller parlays, so some can win even if others lose
Simple Example:
You want to bet on 3 teams: A, B, and C.
3-team parlay: One bet (A + B + C all must win)
Round robin 2-way: Three separate 2-team parlays:
- Parlay 1: A + B
- Parlay 2: A + C
- Parlay 3: B + C
If you go 2-1 (two wins, one loss), you'd lose a traditional 3-team parlay but win 1 out of 3 round robin parlays!
How Does Round Robin Betting Work?
Step 1: Select Your Teams
Choose the teams or bets you want to include. Most sportsbooks allow 3-10 selections for round robins.
Step 2: Choose Parlay Size
Decide how many teams per parlay:
- 2-pick (2-way): All possible 2-team parlays
- 3-pick (3-way): All possible 3-team parlays
- 4-pick (4-way): All possible 4-team parlays
- And so on...
Step 3: Set Your Bet Amount
Your bet amount is per parlay, not total. The sportsbook will show you:
- Number of parlays created
- Total cost (bet amount × number of parlays)
- Potential payout
Step 4: Place the Bet
The sportsbook creates all parlay combinations automatically. Each parlay is a separate bet.
Round Robin Examples
Example 1: 4 Teams, 2-Way Round Robin
Your selections: Teams A, B, C, D (all at -110 odds)
Round robin type: 2-pick (2-team parlays)
Bet per parlay: $10
Parlays created:
- A + B
- A + C
- A + D
- B + C
- B + D
- C + D
Total cost: $10 × 6 parlays = $60
Scenario: You go 3-1 (three wins, one loss)
Let's say Team D loses, but A, B, and C win.
- ✅ A + B wins → pays ~$26
- ✅ A + C wins → pays ~$26
- ❌ A + D loses
- ✅ B + C wins → pays ~$26
- ❌ B + D loses
- ❌ C + D loses
Result: 3 winning parlays × $26 = $78 payout
Profit: $78 - $60 = +$18 profit
Note: A 4-team parlay with the same picks would have lost completely with one loss. The round robin allowed you to still profit!
Example 2: 3 Teams, Multiple Round Robins
Your selections: Teams X, Y, Z
You can create:
- 2-way: 3 two-team parlays (X+Y, X+Z, Y+Z)
- 3-way: 1 three-team parlay (X+Y+Z)
- Both: 4 total parlays (all of the above)
Round Robin Combinations Table
This table shows how many parlays are created based on your selections:
| Teams Selected | 2-Pick Parlays | 3-Pick Parlays | 4-Pick Parlays |
|---|---|---|---|
| 3 teams | 3 | 1 | - |
| 4 teams | 6 | 4 | 1 |
| 5 teams | 10 | 10 | 5 |
| 6 teams | 15 | 20 | 15 |
| 7 teams | 21 | 35 | 35 |
| 8 teams | 28 | 56 | 70 |
Warning: More teams = exponentially more parlays = much higher cost. An 8-team, 2-way round robin at $10 per parlay costs $280!
Round Robin vs Parlay vs Straight Bets
Traditional Parlay
Pros:
- Highest potential payout
- Lowest upfront cost
- Simple to understand
Cons:
- One loss = total loss
- Much lower probability of winning
- Negative expected value increases with more teams
Round Robin
Pros:
- Can win money even with losses
- Less variance than single large parlay
- Still offers parlay-style multiplied payouts
Cons:
- More expensive (many parlays to buy)
- Still negative expected value (just less than big parlays)
- Can be confusing with many combinations
Straight Bets
Pros:
- Best expected value (lowest bookmaker edge)
- Simple win/loss, no complex combinations
- Easier to track performance
Cons:
- Lower payouts (no multiplier effect)
- Less exciting than parlays
When to Use Round Robins
✅ Good situations for round robins:
- You like multiple picks but don't want all-or-nothing risk
- You expect to hit 60-75% of your picks
- You want parlay-style action with more safety
- Recreational betting for entertainment
❌ Avoid round robins when:
- You're trying to maximize expected value (stick to straight bets)
- You can't afford the total cost of all parlays
- You're betting too many teams (exponential costs)
- You don't understand the combinations being created
Round Robin Betting Strategies
1. Stick to 2-Pick Round Robins
2-team parlays have the best balance of risk vs reward. They're easier to win than 3+ team parlays and still offer decent multiplier payouts.
2. Limit Your Total Selections
4-5 teams is the sweet spot. This creates 6-10 parlays, which is manageable in cost while giving you good coverage.
- 4 teams, 2-way: 6 parlays (reasonable cost)
- 5 teams, 2-way: 10 parlays (getting expensive)
- 6+ teams: Usually too many parlays to be worth it
3. Use with Correlated Parlays
Don't use round robins with correlated outcomes. Example: Don't combine "Team to Win" with "Over Total Points" for the same game. This reduces variance without adding value.
4. Calculate Break-Even Win Rate
Know how many picks you need to hit to profit.
- 4 teams, 2-way (6 parlays): Need to win 3+ picks to profit
- 5 teams, 2-way (10 parlays): Need to win 4+ picks to profit
5. Combine with Straight Bets
Bet your strongest picks straight, then use round robins for secondary picks you're less confident about.
How to Calculate Round Robin Payouts
Basic Formula
Each parlay payout is calculated independently using standard parlay math:
- 2-team parlay at -110 each: pays approximately 2.64x your bet
- 3-team parlay at -110 each: pays approximately 6x your bet
- 4-team parlay at -110 each: pays approximately 12.28x your bet
Example Calculation
4 teams at -110 odds, $10 per parlay, 2-way round robin
- Creates 6 two-team parlays
- Total cost: $60
- Each parlay pays ~$26.40 if it wins
If you go 4-0 (all wins):
- All 6 parlays win
- Payout: 6 × $26.40 = $158.40
- Profit: $158.40 - $60 = +$98.40
If you go 3-1 (three wins):
- 3 parlays win (the 3 that don't include the loss)
- Payout: 3 × $26.40 = $79.20
- Profit: $79.20 - $60 = +$19.20
If you go 2-2 (two wins):
- 1 parlay wins (the one with both winners)
- Payout: 1 × $26.40 = $26.40
- Profit: $26.40 - $60 = -$33.60 loss
Pro Tips for Round Robin Betting
1. Use a Parlay Calculator
Before placing, use our Parlay Calculator to understand exact payouts and break-even scenarios.
2. Compare to Straight Bets
Sometimes betting each pick straight at higher stakes gives better expected value than round robins.
3. Don't Overbet
The total cost can sneak up on you. $5 per parlay × 21 parlays = $105, not $5!
4. Track Your Results
Keep records of your round robin performance. Many bettors find they'd do better with straight bets.
5. Avoid Huge Round Robins
7-8 team round robins with multiple parlay sizes create dozens of bets. The complexity and cost usually aren't worth it.
Common Round Robin Mistakes
❌ Mistake 1: Not Understanding Total Cost
Seeing "$10 bet" and not realizing it's $10 × 15 parlays = $150 total.
❌ Mistake 2: Treating It Like a Single Parlay
Round robins are multiple bets, not one bet. Adjust your stake accordingly.
❌ Mistake 3: Too Many Teams
8+ teams creates so many parlays that even with a good hit rate, you might lose money.
❌ Mistake 4: Mixing Parlay Sizes Without Understanding
Betting 2-way + 3-way + 4-way on the same selections creates a ton of overlapping parlays.
❌ Mistake 5: Expecting Positive EV
Round robins are still -EV bets (bookmaker has an edge). They're entertainment, not investment.
Sportsbook Round Robin Options
Most major sportsbooks offer round robins, but features vary:
- DraftKings: Clear round robin builder, up to 8 teams
- FanDuel: Round robins up to 10 teams, good interface
- BetMGM: Round robins with "round robin by X" options
- Caesars: Standard round robins, clear total cost display
- Bet365: Full combinatorial betting options
Key Takeaways
✓ What Round Robins Are:
- Multiple smaller parlays created from your selections
- Can win money even if some picks lose
- Each parlay is a separate bet with its own stake
- Total cost = bet per parlay × number of parlays
✓ Best Practices:
- Stick to 4-5 teams maximum
- Use 2-way (2-team parlays) for best balance
- Calculate total cost before placing
- Know your break-even win rate
- Compare to straight bets for value
✓ When to Use:
- ✅ Recreational betting for entertainment
- ✅ Multiple picks you like but want safety
- ✅ Expecting to hit 60-75% of picks
- ❌ Not for maximizing expected value
- ❌ Not when you can't afford total cost
Looking for better betting strategies? While round robins are fun, serious bettors focus on positive EV betting and arbitrage opportunities for consistent profits.
FAQ: Round Robin Betting
What is a round robin bet?
A round robin bet is a series of smaller parlays created from a larger list of selections. If you select 4 teams and create 2-team parlays, you'll get 6 different two-team parlays. You can win money even if some of your picks lose.
How does a round robin work?
You select multiple teams (typically 3-8), then choose how many teams per parlay (2-way, 3-way, etc.). The sportsbook automatically creates all possible parlay combinations. Each parlay is a separate bet with its own stake.
How much does a round robin cost?
The cost equals your bet amount multiplied by the number of parlays. Example: 4 teams in 2-team parlays creates 6 parlays. If you bet $10 per parlay, total cost is $60.
Can you make money on a round robin if one pick loses?
Yes! That's the advantage of round robins. If you go 3-1 on four picks in 2-team parlays, you'll win 3 out of 6 parlays. You can still profit even with losses, unlike a traditional parlay where one loss kills everything.
What's the difference between a parlay and a round robin?
A parlay is one bet requiring all picks to win. A round robin creates multiple smaller parlays from your selections, so you can win some parlays even if not all picks win. Round robins cost more but are safer than single parlays.
How many teams do you need for a round robin?
Most sportsbooks require a minimum of 3 teams for a round robin. You can typically go up to 8-10 teams, though the number of parlays increases exponentially with more teams.
What is a 2-pick round robin?
A 2-pick (or 2-way) round robin creates all possible 2-team parlays from your selections. With 3 teams, you get 3 two-team parlays. With 4 teams, you get 6 two-team parlays.
Are round robins good bets?
Round robins are better than large parlays because you can still win with losses. However, they cost more than single bets and still have less expected value than straight bets. They're good for recreational betting when you want parlay-style action with more safety.