EV BETTING GUIDE
Understand expected-value betting from first principles.
Guides to expected value, fair odds, edge, Kelly staking, and disciplined market decisions.
Official English article
What Is Edge?
Learn what edge means in sports betting and how to calculate it. This guide covers the basic edge formula, percentage-point vs relative edge, the relationship with EV, estimation error, CLV, and the Kelly criterion.
Official English article
What Are Fair Odds?
Learn what fair odds mean in sports betting and how to calculate them. This guide covers converting odds into market probability, calculating the bookmaker margin (overround), removing the margin through normalisation, and how fair odds relate to expected value and edge.
Official English article
What Is Expected Value (EV)?
Learn what expected value (EV) means in sports betting, how to calculate it, why a high hit rate does not always translate into profit, and why positive-EV bets can still lose.
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