Build a k-from-n system bet, enumerate each combination and estimate the return after win, loss and void leg settlement.
Changing an input marks the displayed result for recalculation.
Build a k-from-n system bet, enumerate each combination and estimate the return after win, loss and void leg settlement.
Calculations are informational. Actual grading, limits, deductions and payouts follow the operator’s rules.
For four legs in a 2-from-4 system there are six doubles. Each double has its own settlement, and the total return is the sum of the six combination returns.
This browser-based tool uses only the values entered on this page. It does not retrieve live odds, predict results or connect to a betting account.
Intermediate calculations retain full JavaScript precision; display values are rounded for readability.
It is the combination count C(n,k), where n is the number of legs and k is the selections per bet.
A void or push leg is assigned decimal odds of 1.00 inside each affected combination.
It loses only combinations containing that leg; other combinations can still return value.
A system is made of separate bets, so total stake equals stake per combination multiplied by the combination count.
This page allows 2 to 12 legs to keep browser enumeration bounded and easy to audit.
Confirm the odds format, stake basis, market scope and settlement rule before relying on the result.