How Parlay Odds and Payouts Work

What is a Parlay Bet?

A parlay is a single wager that combines two or more individual bets, known as legs. For a parlay to win, every leg must win. If any leg loses, the entire parlay loses. Parlays are popular because they offer the chance for a larger payout from a smaller stake, but they are also riskier than single bets.

How Parlay Odds and Payouts Are Calculated

To understand parlay odds and payouts, it’s important to know how the math works. Each leg of a parlay has its own odds, usually shown in American or decimal format. The combined odds for the parlay are calculated by multiplying the decimal prices of each leg together. This gives a new, higher decimal price for the entire parlay.

• Decimal odds show the total return for each $1 staked, including your original stake.
• American odds can be converted to decimal odds before calculating the parlay payout.

Formula for Combined Decimal Odds:

• Combined Decimal Odds = Decimal Odds of Leg 1 × Decimal Odds of Leg 2 × ... × Decimal Odds of Leg N

Formula for Parlay Profit:

• Profit = Stake × (Combined Decimal Odds – 1)

Formula for Total Return:

• Total Return = Stake × Combined Decimal Odds

Worked Example 1: Two-Leg Parlay

Suppose you want to place a $20 parlay on two NFL games:

• Leg 1: Team A to win at decimal odds of 1.80
• Leg 2: Team B to win at decimal odds of 2.10

Step 1: Multiply the decimal odds

• Combined Decimal Odds = 1.80 × 2.10 = 3.78

Step 2: Calculate profit and total return

• Profit = $20 × (3.78 – 1) = $20 × 2.78 = $55.60
• Total Return = $20 × 3.78 = $75.60

If both teams win, you receive $75.60 in total, which includes your original $20 stake and $55.60 in profit. If either team loses, you lose your $20 stake.

Worked Example 2: Three-Leg Parlay with Mixed Odds Formats

Let’s say you want to create a three-leg parlay with the following odds:

• Leg 1: -110 (American odds)
• Leg 2: +150 (American odds)
• Leg 3: 2.50 (Decimal odds)

Step 1: Convert American odds to decimal odds

• -110: Decimal = (100 / 110) + 1 = 0.909 + 1 = 1.91
• +150: Decimal = (150 / 100) + 1 = 1.5 + 1 = 2.50

Step 2: Multiply all decimal odds

• Combined Decimal Odds = 1.91 × 2.50 × 2.50 = 11.94

Step 3: Calculate profit and total return for a $10 stake

• Profit = $10 × (11.94 – 1) = $10 × 10.94 = $109.40
• Total Return = $10 × 11.94 = $119.40

If all three legs win, you receive $119.40 in total, which includes your $10 stake and $109.40 in profit. If any leg loses, you lose your $10 stake.

Common Mistakes and Limitations with Parlays

• Overestimating the chance of winning: The more legs you add, the lower your chance of winning the parlay. Each leg must win, so the probability of success drops quickly as you add more legs.
• Confusing profit with total return: Remember, profit is what you win above your stake. Total return includes your original stake.
• Not converting odds correctly: Always convert American odds to decimal odds before multiplying for parlays.
• Ignoring the sportsbook’s margin: The odds you see include the sportsbook’s margin (vig), so the combined price is not a prediction of the true chance of winning.
• Assuming all legs are independent: Some parlays may include correlated outcomes, which are not always allowed or may be priced differently.
• Forgetting about voided legs: If a leg is voided (for example, due to a canceled game), most sportsbooks reduce the parlay to the remaining legs, recalculating the payout.

How to Use the Kingpin Parlay Calculator

The Kingpin Parlay Calculator helps you work out potential payouts for parlays. Here’s how to use it:

1. Enter your stake: Type in the amount you want to bet.
2. Choose the number of legs: Enter American odds such as -110 or +150 for every leg, then enter your stake.
3. Select Calculate: The calculator will show you the combined decimal odds, your potential profit, and your total return if all legs win.

Limitations:

• The calculator assumes all legs are independent and that all odds are entered correctly.
• It does not account for sportsbook-specific rules about voided legs or correlated outcomes.
• It does not predict your chance of winning; it only shows the payout based on the odds you enter.

Responsible Betting with Parlays

Parlays can be exciting, but they are also high-risk. Here are some tips for responsible betting:

• Understand the risk: The chance of winning a parlay drops with each added leg. Only bet what you can afford to lose.
• Don’t chase losses: Avoid increasing your parlay size to try to recover from previous losses.
• Set a budget: Decide in advance how much you are willing to risk on parlays and stick to it.
• Use tools wisely: Calculators can help you understand potential payouts, but they do not guarantee any outcome.
• Seek help if needed: If you find it hard to control your betting, consider reaching out for support.

Summary

Parlay odds and payouts are calculated by multiplying the decimal prices of each leg. The potential profit can be much higher than with single bets, but the risk is also greater because every leg must win. Use the Kingpin Parlay Calculator to check your potential payout, but always bet responsibly and understand the limitations of parlays.

Use the Kingpin calculator

Run your own numbers with the related Kingpin betting calculator. The tool applies the formulas described above and does not predict winners.

Bet responsibly

Sports betting involves risk. Never risk money you cannot afford to lose, never chase losses, and set firm time and spending limits. If gambling stops being fun, visit the National Council on Problem Gambling for help.