This educational example uses fictional inputs. It demonstrates the arithmetic without representing a current event, live price, or recommendation.
Last reviewed: 2026-08-10
Example inputs
Assume a $25 stake, leg A at decimal odds of 1.80, and leg B at decimal odds of 2.10. Assume estimated probabilities of 56% and 48% solely for illustration.
Calculate the return
Combined odds equal 1.80 x 2.10 = 3.78. Potential payout equals $25 x 3.78 = $94.50. Potential profit equals $94.50 minus $25 = $69.50.
Estimate hit probability
Under an independence assumption, 0.56 x 0.48 = 0.2688, or 26.88%. If the legs are correlated, this simple estimate may be misleading.
Interpret the example
The payout calculation is deterministic once odds and stake are entered. The probability calculation is an estimate and should be stress-tested rather than treated as a promise.
Frequently asked questions
Does payout include the original stake?
Decimal-odds payout normally includes the returned stake; profit subtracts it.
Are these real odds?
No. Every number on this page is a fictional educational example.