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Plain-language explanations of how betting markets work — how a price is written, what the sportsbook is charging for it, and how to read a line before you take it.
-110, 1.91 and 10/11 are the same number in three notations. Here is how to move between them without a calculator, and why professionals tend to think in decimal.
Updated 4 min read
Odds Comparison
See moneyline, spread and total prices from every sportsbook we track side by side, with the best number marked.
Odds Converter
Convert between American odds, decimal odds and implied probability, in both directions.
Parlay Calculator
Combine up to ten legs in American or decimal odds and see the combined price, profit and total payout.