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Lucky 31 calculator

5 selections: 5 singles plus every double, treble, four-fold and the five-fold — 31 bets. Enter decimal odds for each selection, mark the results, and every one of the 31 bets is settled instantly.

Lucky 31 returns

Total return
Profit / loss

What is inside a Lucky 31

Bet typeCount
Singles5
Doubles10
Trebles10
Four-folds5
Five-folds1
Total bets31

When a Lucky 31 makes sense — honestly

Every bet inside a Lucky 31 carries the bookmaker's margin, and combining selections multiplies that margin just as it multiplies the odds. A system bet never improves your expected value over the same stakes placed as singles — what it changes is the shape of the outcomes: the singles soften bad days, while the bigger combinations carry the upside. That is a variance choice, not an edge.

The honest way to use one: pick selections that are each positive value on their own (our screener ranks the board by exactly that), keep the unit stake small enough that 31 bets fit your bankroll rules, and check every price before placing — a leg that drifted past fair value weakens every combination it sits in, not just its own single.

Lucky 31 FAQ

What is a Lucky 31 bet?+

A system bet on 5 selections made of 5 singles, 10 doubles, 10 trebles, 5 four-folds, 1 five-folds — 31 bets in total, each carrying its own stake. 5 selections: 5 singles plus every double, treble, four-fold and the five-fold — 31 bets.

How much does a Lucky 31 cost?+

Your unit stake times 31. At 1 unit per bet the full slip costs 31 units — the calculator shows the exact outlay as you type.

How many winners do I need for a Lucky 31 to pay?+

One. The singles mean a lone winner already returns something, though usually less than the total outlay — the calculator shows the exact figure for your odds.

What happens to void selections?+

A void (postponed match, non-runner) is not a loss: every combination containing it is settled at odds of 1.00 for that leg, so doubles become effective singles and so on. Mark a selection Void in the calculator to see the effect.

⚠️ Our AI model is still learning from match data. All predictions are experimental statistical estimates for information purposes only — not financial advice and not an invitation to bet. Outcomes are never guaranteed. 18+ · Gamble responsibly.