Value Bet Calculator by Oscar Williams

Calculate value bets based on bookmaker odds and real probabilities with automatic data retrievalSmart value bet calculator for sports betting. Analyze odds, estimate expected value, and find profitable bets instantly with real-time data.

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About this extension

Value Bet Calculator helps you identify profitable sports bets by calculating expected value based on real-time odds and probabilities. The extension supports both manual input and automated analysis using live data from top betting APIs.

With support for football, basketball, tennis, and hockey, you can search for matches by sport, league, or team. The tool provides dynamic dropdowns, instant filtering, and a clear display of value results — rounded to three decimals and color-coded for easy analysis.

A dedicated tab shows the top 10 value matches of the day, updated regularly. You can monitor value opportunities without logging in, sharing data, or switching tabs. Fast, smart, and lightweight — perfect for bettors who value precision and clarity.

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