Betstamp EV Formula:
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The Betstamp Prediction Calculator estimates the Expected Value (EV) of a bet based on the predicted win probability and potential profit/stake amounts. It helps bettors make informed decisions by quantifying the long-term value of a wager.
The calculator uses the Expected Value formula:
Where:
Explanation: Positive EV indicates a potentially profitable bet in the long run, while negative EV suggests the bet is unfavorable.
Details: Calculating expected value helps bettors make objective decisions by quantifying the mathematical advantage of each wager, considering both probability and payout.
Tips: Enter the predicted win probability as a decimal (0-1), the potential profit amount, and the stake amount. All values must be valid (probability between 0-1, monetary amounts ≥ 0).
Q1: What is a good EV for a bet?
A: Generally, positive EV indicates a good bet. The higher the positive value, the more favorable the bet is long-term.
Q2: How accurate is this calculator?
A: The calculation is mathematically precise, but depends entirely on the accuracy of your predicted win probability input.
Q3: Should I only make positive EV bets?
A: While positive EV bets are mathematically favorable, other factors like bankroll management and risk tolerance should also be considered.
Q4: How do I determine the win probability?
A: This can be estimated using statistical models, historical data, or betting market implied probabilities.
Q5: What does negative EV mean?
A: Negative EV suggests the bet is unfavorable in the long run, meaning you would expect to lose money over time with similar bets.