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What is a Parlay?

A parlay combines multiple bets into one wager. All selections must win for the parlay to pay out, but the odds multiply for potentially huge payouts.

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Smart Parlay Building

Line Gap helps you build better parlays by analyzing:
  • Correlation: How props relate to each other
  • Combined Probability: True odds of all legs hitting
  • Expected Value: Whether the parlay offers value

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Types of Parlays

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Same Game Parlay (SGP)

Multiple bets from the same game. Example:
  • LeBron Over 25.5 Points
  • AD Over 10.5 Rebounds
  • Lakers to Win
Correlation Matters: If Lakers are winning big, LeBron likely scored well, making these correlated.

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Multi-Game Parlay

Bets across different games. Example:
  • Curry Over 4.5 Threes (Warriors vs Suns)
  • Embiid Over 28.5 Points (76ers vs Celtics)
  • Jokic Over 9.5 Rebounds (Nuggets vs Lakers)

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Building Your Parlay

1

Select Your Legs

Add 2-6 props from the dashboard or high confidence section
2

Review Correlation

Line Gap shows correlation scores:
  • Positive Correlation: Props likely to hit together
  • Negative Correlation: Props work against each other
  • No Correlation: Independent outcomes
3

Check Combined Probability

See the true probability of all legs hitting together
4

Compare Fair Odds

Line Gap shows what the fair parlay odds should be vs. what sportsbooks offer
5

Place Bet

If the parlay has positive EV, place it on your sportsbook

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Correlation Analysis

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Positive Correlations

Props that tend to happen together: High-Scoring Games:
  • Team Total Over + Player Points Over (same team)
  • Pace-dependent props in same game
Blowouts:
  • Star player low minutes + Low points
  • Winning team player props + Team win

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Negative Correlations

Props that work against each other: Competing for Stats:
  • Two teammates both Over points
  • Assists leader + Low pace game
Game Script:
  • Team winning big + Garbage time player props

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Independent Events

Props with no relationship:
  • Props from different games
  • Different stat categories (Points vs Blocks)

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Parlay Strategy

Longer parlays have lower hit rates. Sweet spot is 2-4 legs for balance of risk/reward.
Same game parlays work best when props support each other
-500 favorites add little value. Focus on props with better odds
If your parlay has <20% chance of hitting, reconsider
Some books offer parlay insurance if one leg loses. Factor this into EV calculations

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Fair Odds Calculation

Line Gap calculates what parlay odds should be: Example 3-Leg Parlay:
  • Leg 1: 60% probability
  • Leg 2: 55% probability
  • Leg 3: 50% probability
Combined Probability: 60% × 55% × 50% = 16.5% Fair Odds: +506 (1 / 0.165 - 1) If sportsbook offers +600, you have +EV. If they offer +400, avoid.

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Common Mistakes

Avoid these parlay pitfalls:
  1. Chasing Big Payouts: Don’t add bad legs just to boost odds
  2. Ignoring Correlation: Two negatively correlated props kill your chances
  3. Overconfidence: Even 80% props miss sometimes
  4. Poor Bankroll Management: Don’t bet your whole roll on one parlay

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Parlay vs. Straight Bets

Parlays:
  • Higher variance
  • Bigger potential payouts
  • Lower hit rate
  • All legs must win
Straight Bets:
  • Lower variance
  • Smaller payouts
  • Higher hit rate
  • Each bet independent
Best Approach: Mix both. Use straight bets for high EV props, parlays for correlated plays.

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Next Steps

Dashboard

Browse available props

Research Lab

Analyze player correlations

High Confidence

Find best parlay legs