Qualifying bet hedge
Size the hedge on your first promo wager. Used in lesson: Using the Qualifying Bet Calculator.
Open Qualifying Bet calculatorTools
Altro calculators
Estimate bonus payouts and model matched-betting hedges. Matched betting tools below are walkthrough companions for lessons in Altro Complete.
Welcome bonus calculator
Model net value after fees and required spend. Works for credit card welcome offers and similar cash bonuses. Defaults match a typical no-annual-fee card ($200 after $500 spend).
Enter values and click calculate.
Matched betting calculators (Altro Complete)
These tools live on the matched betting calculators page — linked from lessons on qualifying bets, bonus conversion, Kelly sizing, risk of ruin, and more. American moneyline odds only.
Bonus bet conversion
Convert free bets (stake not returned) to cash. Used in lesson: Using the Bonus Conversion Calculator.
Open Bonus Bet calculatorTwo-way arbitrage
Split stake across two outcomes for equal return. Used in lesson: Arbitrage Opportunities and Expected Value Bets.
Open Two-way arbitrage calculatorExpected value (EV)
Estimate edge when your probability differs from the line. Course walkthrough tool.
Open EV calculatorKelly criterion
Full and half-Kelly stake sizing for positive expected value spots. Used in Kelly Criterion in Practice.
Open Kelly calculatorRisk of ruin
Stress-test bankroll versus bet size. Used in Risk of Ruin: Setting Bet Size.
Open Risk of Ruin calculatorNew to matched betting? Read the arbitrage guide or view Altro Complete.