Calculators / Cover every outcome

Cover every outcome

Back every possible result of one market — usually at different bookmakers — and the maths tells you up front whether you profit or lose, whatever happens.

The test is simple: add up 1 ÷ odds for every outcome. Under 1.00 and the prices are far enough apart to lock in a profit; over 1.00 (almost always) and covering everything guarantees a small loss — that gap is the bookmaker's margin. Genuine locked-in profits do appear when bookmakers disagree, but they are rare, small and short-lived: always check the live prices and bet limits before relying on one.