31 bets · 5 selections
Lucky 31 calculator: all 31 bets from five selections, with bonuses
A Lucky 31 is five selections combined into 31 bets — every possible combination from the five singles up to the fivefold. It is the Lucky 15 scaled up by one selection, and the stake scales with it.
How a Lucky 31 is made up
A Lucky 31 covers every single, double, treble, fourfold and the fivefold across five selections. That comes to 31 separate bets, so a £1 Lucky 31 costs £31.00 rather than £1 — and £62.00 if you place it each way.
| Line type | Number of bets | Share of the bet |
|---|---|---|
| singles | 5 | 16.1% |
| doubles | 10 | 32.3% |
| trebles | 10 | 32.3% |
| fourfolds | 5 | 16.1% |
| fivefold | 1 | 3.2% |
| Total | 31 | 100% |
A worked Lucky 31 example
Take five selections at 2/1, 6/4, 3/1, evens and 4/1, staked at £0.50 a line with every selection winning. The figures below come from the same calculation the tool above runs.
- Unit stake
- £0.50
- Total stake
- £15.50
- Returns
- £629.50
- Profit
- +£614.00
| Selection | Fractional | Decimal |
|---|---|---|
| 1 | 2/1 | 3.00 |
| 2 | 3/2 | 2.50 |
| 3 | 3/1 | 4.00 |
| 4 | 1/1 | 2.00 |
| 5 | 4/1 | 5.00 |
When a Lucky 31 is the right bet
Adding a fifth selection more than doubles the bet. A Lucky 15 is 15 units; a Lucky 31 is 31. That is the first thing to be clear about, because the name makes the step sound smaller than it is. At £1 a line you are staking £31, and each way you are staking £62.
What you get for it is a much wider spread of multiples. Where the Lucky 15 tops out at a fourfold, the Lucky 31 adds ten fourfolds and a fivefold, and those are the lines that produce the headline returns when a day goes well. The singles still provide the floor, so one winner keeps the bet alive.
The mathematics of the lucky family are worth internalising: the number of bets is always two to the power of the number of selections, minus one. Four selections give 15, five give 31, six give 63. Every jump roughly doubles both the coverage and the cost, which is why the Lucky 63 is a far bigger commitment than its name suggests.
All-winner bonuses on a Lucky 31 are typically larger than on a Lucky 15, reflecting how unlikely five from five is. As always the figure is set by the bookmaker rather than by convention, and many firms void the bonus entirely if any selection is withdrawn — worth checking before you rely on it in your calculations.
What it does well
- One winner still returns money
- Ten fourfolds and a fivefold give real upside
- Larger all-winner bonuses than the smaller lucky bets
What it costs you
- A 31-unit stake is a serious outlay
- Bonuses are often voided by a non-runner
- Needs generous prices to justify the cost
Lucky 31 questions
How many bets are in a Lucky 31?
Thirty-one: five singles, ten doubles, ten trebles, five fourfolds and one fivefold. That is every combination of the five selections.
How much does a £1 Lucky 31 cost?
£31 for a win-only bet, or £62 each way. Because the unit stake multiplies by 31, most people place a Lucky 31 in smaller units such as 25p or 50p.
What is the difference between a Lucky 31 and a Canadian?
A Canadian, also called a Super Yankee, uses the same five selections but leaves out the singles, giving 26 bets rather than 31. It needs at least two winners to return anything.
Do Lucky 31 bonuses differ from Lucky 15 bonuses?
The structure is the same — a one-winner uplift and an all-winners percentage — but the all-winners figure is usually higher on a Lucky 31 because five from five is much harder. Terms vary by bookmaker and are often void if a selection is withdrawn.
Is a Lucky 31 worth the stake?
Only with prices generous enough to support it. At 31 units the bet needs either a strong winner at a big price or several legs landing. Run your actual odds through the calculator and compare against a Lucky 15 on your four strongest selections.