Bet Arbitrage Calculator 1.0 Download

Bet arbitrage is a betting strategy that allows you to profit from discrepancies in odds offered by different bookmakers. This calculator helps you identify and calculate potential arbitrage opportunities in sports betting.

What is Bet Arbitrage?

Bet arbitrage occurs when the combined odds from multiple bookmakers on the same event are greater than 100%. For example, if Bookmaker A offers 2.00 odds on Team A winning and Bookmaker B offers 2.00 odds on Team B winning, the combined odds would be 4.00 (2.00 × 2.00), which is greater than 100%.

This means you can place bets with both bookmakers, ensuring a profit regardless of the outcome. The calculator helps you find these opportunities by comparing odds from different sources.

Key Terms

Decimal Odds: Odds expressed as a decimal number (e.g., 2.00).

Implied Probability: The probability implied by the odds (e.g., 2.00 odds imply a 50% chance).

Arbitrage Percentage: The percentage profit you can expect from an arbitrage bet.

How to Use the Calculator

To use the Bet Arbitrage Calculator:

Enter the odds from two or more bookmakers for the same event.
Click "Calculate" to see if an arbitrage opportunity exists.
If an opportunity is found, the calculator will show the recommended stake allocation and potential profit.
Place your bets according to the recommended stake allocation.

The calculator will also show a chart visualizing the arbitrage opportunity if one exists.

Formula Explained

The Bet Arbitrage Calculator uses the following formula to determine if an arbitrage opportunity exists:

Arbitrage Formula

If the product of the decimal odds from multiple bookmakers is greater than 1.00, an arbitrage opportunity exists.

Mathematically: Odds1 × Odds2 × ... × OddsN > 1.00

Once an arbitrage opportunity is confirmed, the calculator calculates the optimal stake allocation using the following formula:

Stake Allocation Formula

Stake on Bookmaker X = (Total Bankroll × OddsX) / (Odds1 + Odds2 + ... + OddsN)

This ensures that you place the correct amount on each bookmaker to guarantee a profit.

Worked Example

Let's say you want to bet on a football match where:

Bookmaker A offers 2.50 odds on Team A winning.
Bookmaker B offers 3.00 odds on Team B winning.

First, check if an arbitrage opportunity exists:

2.50 × 3.00 = 7.50 > 1.00 → Arbitrage opportunity exists.

Next, calculate the stake allocation if you have a total bankroll of $100:

Stake on Bookmaker A = ($100 × 3.00) / (2.50 + 3.00) = $71.43

Stake on Bookmaker B = ($100 × 2.50) / (2.50 + 3.00) = $28.57

This means you should bet $71.43 with Bookmaker A and $28.57 with Bookmaker B to guarantee a profit regardless of the outcome.

Frequently Asked Questions

What is the minimum arbitrage percentage to consider?: There is no fixed minimum, but generally, you should look for opportunities with at least a 2-3% arbitrage percentage to account for bookmaker commissions and potential liquidity issues.
Can I use this calculator for any type of bet?: Yes, the Bet Arbitrage Calculator can be used for any type of bet, including sports, politics, and entertainment events.
How do I account for bookmaker commissions?: Bookmaker commissions typically range from 3-10%. You should subtract this from the calculated profit to determine your net gain.
Is bet arbitrage legal?: Bet arbitrage is legal in most countries, but you should check the laws in your jurisdiction to ensure compliance.
How often do arbitrage opportunities occur?: Arbitrage opportunities are relatively rare but can occur frequently during major events or when bookmakers adjust their odds.