Lucky 31 mechanics & rules
The Lucky 31 provides full cover with singles, returning profit even when multiple picks fail.
Payouts are determined by multiplying the unit stake by the cumulative price of each winning selection or combination line. If any selection is scratched or declared non-runner/void, standard rules settle that leg at neutral odds of 1.00.
Worked example: Lucky 31
Wagering a $1.00 unit stake ($31.00 total), if 4 of 5 selections win at 2.00, 2.50, 3.00, and 2.00, you win 4 singles ($9.50), 6 doubles ($41.50), 4 trebles ($60.00), and 1 four-fold ($30.00), totaling $141.00 payout ($110.00 profit).
Always check bookmaker maximum payout caps and race terms before placing high-volume system bets.
Lucky 31 inputs & settings
Odds Format & Stake Sizing
Enter odds in decimal odds or switch between decimal, fractional, and moneyline formats. Ensure you verify whether you are entering unit stake per bet or total budget.
Settlement Conditions
Select the result for each pick (Won, Placed, Dead Heat, Void, or Lost) to calculate precise return figures.
CALCULATOR QUESTIONS
Lucky 31 questions
How does a void leg affect a lucky 31?
When a selection is void, postponed, or scratched, that specific leg counts as a 1.00 multiplier (money returned for that leg), and the multiple bet rolls down into the remaining folds.
What is the difference between unit stake and total stake?
Unit stake is the amount wagered on each individual bet or line. Total stake equals the unit stake multiplied by the total number of bets in the multiple or system wager.
Are gambling and betting winnings taxed?
Taxation of sports betting winnings varies by country; consult your local tax authority or revenue service.