THE MATHS, MADE CLEAR
How it works
Every selection must win for the displayed full return. Multiplication of individual implied probabilities only makes sense as a joint estimate when outcomes are independent. Correlated selections and same-game combinations may be repriced. The reciprocal of the combined price is not a forecast of actual success.
Combined odds = odds₁ × odds₂ × … × oddsₙ; return = stake × combined odds
A worked example
Three selections at 1.50, 2.00 and 1.80 combine to 5.40. A 25-unit stake could return 135, including the stake: 110 units net profit. The price-implied probability is 1 ÷ 5.40 = 18.52%, assuming independence.
Understand the assumptions.
These are educational calculations, not predictions or recommendations. Display amounts are rounded to two decimal places; calculations retain internal precision.