1. What is Moneyline Hold Percentage?

The moneyline hold percentage represents the bookmaker's theoretical profit margin built into the odds. It's calculated by converting both moneyline odds to implied probabilities and seeing how much they exceed 100%.

2. How Does the Calculator Work?

The calculator uses the hold percentage formula:

Where:

• \( \text{Implied Probability}_1 \) — Probability derived from first moneyline odds (0-1)
• \( \text{Implied Probability}_2 \) — Probability derived from second moneyline odds (0-1)

Explanation: The equation shows how much the combined probabilities exceed 100%, which represents the bookmaker's margin.

3. Importance of Hold Calculation

Details: Understanding hold percentage helps bettors identify how much vigorish (vig) the sportsbook is charging, allowing for better comparison between bookmakers.

4. Using the Calculator

Tips: Enter both implied probabilities as decimal values between 0 and 1. The calculator will show the hold percentage.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical hold percentage?
A: Most sportsbooks aim for a hold between 4-10% on moneyline bets, depending on the sport and market.

Q2: How do I convert moneyline odds to implied probability?
A: For positive odds: Probability = 100/(odds + 100). For negative odds: Probability = odds/(odds + 100).

Q3: What does a higher hold percentage mean?
A: A higher hold means the sportsbook is taking a larger margin, making it harder for bettors to profit long-term.

Q4: Can hold be negative?
A: No, a negative hold would indicate an arbitrage opportunity where bettors could guarantee profit.

Q5: How can I use this information as a bettor?
A: Comparing hold percentages between sportsbooks can help you find better value bets with lower margins.